CN103616404A - Fluid flow heat-exchanging experimental device with ball socket/ball bulge flow control structure - Google Patents
Fluid flow heat-exchanging experimental device with ball socket/ball bulge flow control structure Download PDFInfo
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- CN103616404A CN103616404A CN201310545250.9A CN201310545250A CN103616404A CN 103616404 A CN103616404 A CN 103616404A CN 201310545250 A CN201310545250 A CN 201310545250A CN 103616404 A CN103616404 A CN 103616404A
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Abstract
The invention discloses a fluid flow heat-exchanging experimental device with a ball socket/ball bulge flow control structure. The fluid flow heat-exchanging experimental device comprises a speed adjusting motor, a centrifugal pump, a testing section, an electric heating system, a flow meter, a water tank temperature control system and a water tank, wherein the speed adjusting motor is connected with the centrifugal pump; a water outlet of the water tank is communicated with an inlet of the testing section and an outlet of the testing section is communicated with the inlet of the centrifugal pump; the outlet of the centrifugal pump is communicated with the water tank; the testing section comprises an experimental channel upper cover plate and an experimental channel lower cover plate which are buckled with each other; a concave region is arranged in the middle of the experimental channel lower cover plate; the concave region is internally filled with a building block type ball socket/ball bulge flow control structure. According to the fluid flow heat-exchanging experimental device, a relative depth, a spanwise spacing and a streamwise spacing of a ball socket/ball bulge in a channel and the manner of combining the ball socket with the ball bulge are changed by replacing the ball socket/ball bulge, a spanwise filling block, a streamwise filling block and the like; a whole molding design method of the testing channel is improved by the design; building block type blocked structural design is adopted and the change of geometrical parameters of the channel can be finished conveniently and rapidly in a time-saving and labor-saving manner.
Description
[technical field]
The present invention relates to fluid interchange technical field, particularly a kind of fluidic heat exchange of fluids experimental provision.
[background technology]
In the fields such as national defence, biomedicine, Aero-Space, electronics industry, all relate to energy and mass transfer process, wherein energy-efficient close-coupled heat transmission equipment has played very crucial effect.Along with becoming increasingly conspicuous of scientific and technical fast development and energy problem, heat transmission equipment load and heat transfer intensity increase gradually, therefore the heat exchange efficiency of heat exchanging system has proposed requirements at the higher level, and enhanced heat exchange technology is also subject to academia thus and engineering circles is more and more paid attention to.
Ball-and-socket and ball are protruding is a kind of sphere pit and the projection of arranging according to certain rules at wall, is a kind of Passive Control structure.Chinese scholars has been carried out deeply research widely to arranging the protruding passage geometric parameter of ball-and-socket/ball, ball-and-socket/ball convex combination mode and flow parameter, disclose protruding enhanced heat exchange and the drag characteristic of ball-and-socket/ball, for the Novel compact reinforced heat exchanger of development efficient low-resistance and the combustion machine blade cooling structure based on ball-and-socket/ball male structure, played important prograding.
Along with further developing of high-efficiency compact heat exchanger, traditional heat-exchange working medium is difficult to meet some requirement to high load capacity heat transfer intensity of the heat interchanger with special construction.Therefore, Development of Novel heat-exchange working medium becomes the emphasis of enhanced heat exchange technology.
Nano-fluid is regarded as heat exchanging fluid of new generation, nano-fluid is by neat liquid and be suspended in the fluid-mixing that nanometer sized metal particles wherein forms, nano-fluid has far away the thermal conductivity higher than traditional working medium, and stability is very high, from nineteen ninety-five, propose after nano-fluid concept, relevant enhanced heat exchange research has obtained developing widely and having obtained good effect.
Non-Newtonian fluid refers to the fluid that does not meet law of friction in newton, there is separation flow and again in attached passage, non-Newtonian fluid, especially power-law fluid is larger in passage diverse location place viscosity difference, easily in passage, forming method is poor to viscosity, and cause larger normal stress difference, this effect will make formation Secondary Flow in passage, promote the carrying out of heat exchange, and, due to the variation of diverse location shearing rate, non-Newtonian fluid viscosity change is larger in flowing in passage, easily produce high-intensity shear flow, can promote heat exchange property equally.
Organic working medium, because it has lower evaporating temperature, has the not available advantage of other working medium when heat source temperature is lower, can rapidly and efficiently remove heat source temperature.
In sum, the protruding mobile control of above-mentioned multifrequency nature fluid and ball-and-socket/ball is combined and carries out the research of enhanced heat exchange and flowing experiment and have important engineering and learning value, as: (1) utilizes nano-fluid to have higher thermal conductivity, in conjunction with enhanced heat exchange and the Drag Reduction performance of ball-and-socket/ball male structure, obtain realizing the more enhanced heat exchange mode of high heat-exchanging performance; (2) utilize non-Newtonian fluid at turbulent flow and the complex separations drag-reduction effect in attached flowing again, and the characteristic that is easy to form Secondary Flow in aspect ratio passage, enhanced heat exchange and Drag Reduction performance in conjunction with ball-and-socket/ball male structure, obtain promoting enhanced heat exchange performance simultaneously substantially constant the or beneficial effect that decreases of resistance coefficient; (3) utilize the lower feature of organic working medium evaporating point temperature, in conjunction with enhanced heat exchange and the Drag Reduction performance of ball-and-socket/ball male structure, realize the effect of enhanced heat exchange in the lower special applications of heat source temperature.The protruding mobile control of above-mentioned multifrequency nature fluid and ball-and-socket/ball combines and the enhanced heat exchange that carries out and mobile experimental study, makes the rapid moving of device surface amount of heat in special applications except having had realistic feasibility.
Further, during the protruding mobile control structure channels designs of existing layout ball-and-socket/ball, be global design, at numerical control machining center, carry out global formation, the passage geometric parameter that the method obtains is fixed, if when geometric parameter (as protruding in ball-and-socket/ball exhibition to spacing, flow to spacing etc.) changes, must re-start whole passageway machining, not only waste time and energy, and passage does not have versatility.
[summary of the invention]
The object of the present invention is to provide a kind of fluidic heat exchange of fluids experimental provision with the protruding mobile control structure of ball-and-socket/ball, the enhanced heat exchange performance of ball-and-socket/ball male structure and multifrequency nature fluid is combined, when improving heat exchange property, resistance raises less, obtain the better enhanced heat exchange effect of performance, and can in experimental provision, flow, temperature and pressure test component carry out the quantitative measurment of heat exchange and flow parameter; And for the test section passage in experimental provision, the design of brick pattern blockstructured has been proposed, can obtain quickly and easily according to actual needs the protruding different exhibitions of ball-and-socket/ball to spacing and the channel architecture that flows to spacing, and can obtain ball-and-socket and the various mutual combination forms of ball male structure, enrich research contents, greatly reduced passageway machining time and expense.
To achieve these goals, the present invention adopts following technical scheme:
With the fluidic heat exchange of fluids experimental provision of the protruding mobile control structure of ball-and-socket/ball, comprise buncher, centrifugal pump, test section, electric heating system, flowmeter, water tank temperature control system and water tank; Buncher connects described centrifugal pump; The water delivering orifice of water tank is communicated with the test section entrance of test section by feeder connection section, the test section outlet of test section is communicated with the entrance of centrifugal pump by channel outlet section, and centrifugal delivery side of pump is by pipeline communication water tank; Test section is provided with for testing thermometric first temp measuring system of inner fluid passage of test section and the second temp measuring system, for testing the 3rd temp measuring system of inner fluid passage temperature of test section and the second temp measuring system, for measuring the poor differential pressure transmitter of test section pressure at two ends, for the electric heating system of homogeneous heating test section; Test section comprises experiment channel upper cover plate and the experiment channel lower cover of mutual fastening; Experiment channel lower cover middle part is provided with sunk area, is filled with the protruding mobile control structure of brick pattern ball-and-socket/ball in described sunk area.
The present invention further improves and is: the protruding mobile control structure of ball-and-socket/ball by some ball-and-sockets, ball is protruding and filling block combination is filled in described sunk area and forms;
Or the protruding mobile control structure of ball-and-socket/ball is filled in described sunk area and is formed by some ball-and-sockets and filling block combination;
Or by some balls, protruding and filling block combination is filled in described sunk area and forms the protruding mobile control structure of ball-and-socket/ball.
The present invention further improves and is: described ball-and-socket/ball is protruding is the square block with bulb-shaped recess/projection; Described filling block comprises exhibition to filling block and/or flows to filling block; Described filling block for fill the protruding exhibition of ball-and-socket/ball to/flow to and passage cover plate between space.
The present invention further improves and is: the protruding size of described some ball-and-socket/balls, shape are identical with material.
The present invention further improves and is: the first temp measuring system and the second temp measuring system are arranged at respectively outlet and the porch of test section; The 3rd temp measuring system and the 4th temp measuring system are arranged at respectively outlet and the porch of test section.
The present invention further improves and is: feeder connection Duan Weiyuan turns square joint, and channel outlet Duan Weifang turns round splce.
The present invention further improves and is: in test section, be formed with square runner, the ratio of width to height of described square runner is 4～1; In the height of the protruding middle depressions/protrusions of ball-and-socket/ball and test section, the ratio of the height of square runner is 0.05～0.15.
The present invention further improves and is: centrifugal pump is under the control of buncher, drive fluid flows, fluid is flowed through and is entered the test section of the protruding mobile control structure of dribbling nest/ball after feeder connection section and test section entrance by water tank, in experiment, test section adopts electric heating system to carry out homogenising heating, external heat source is provided, in this process, by the first temp measuring system and the second temp measuring system, carried out the channel wall temperature survey of test section, by the 3rd temp measuring system and the 4th temp measuring system, carry out the inner fluid passage temperature survey of test section, by differential pressure transmitter, measure test section pressure at two ends poor, obtain channel flow drag parameter, fluid flows out after test section outlet section, via centrifugal pump, enter upside closed circuit, and through flowmeter survey experiment flow, return to subsequently water tank and complete flow circuit, in water tank, be provided with water tank temperature control system, water tank inner fluid is carried out to temperature survey and the cooling control that heats up, make the fluid that returns to water tank through channel cycle in water tank, recover design temperature.
The present invention further improves and is: described fluid is non-Newtonian fluid, nano-fluid, organic working medium and the fluid that is mutually combined to form thereof.
With respect to prior art, the present invention has following beneficial effect:
During the protruding mobile control structure channels designs of band ball-and-socket/ball of the present invention, can by changing, ball-and-socket/ball be protruding, exhibition to filling block, flow to the structures such as filling block, change the protruding relative depth of ball-and-socket/ball in passage, exhibition to spacing, flow to spacing, ball-and-socket and ball convex combination mode, this design improvement test channel global formation method for designing, adopt the design of brick pattern blockstructured, can be convenient and swift, the time saving and energy saving change that completes passage geometric parameter.
In experimental provision of the present invention, select centrifugal pump to drive flow circuit, and designed variable speed system and carried out rotational speed regulation, can obtain the different in flow rate operating mode in passage.
In experimental provision of the present invention, design feeder connection section and test section entrance, guaranteed the mobile entry effect of test section elimination, designed channel outlet section and test section outlet section, avoided the mobile outlet effects of test section.
Import and export in test section upper and lower cover plates in experimental provision are provided with respectively three fluid temperature (F.T.) measuring points, and totally ten two temperature points, eliminate test error, with this, obtain the accurate temperature of importing and exporting fluid; Import and export in test section upper and lower cover plates are simultaneously provided with respectively three channel wall temperature points, and totally ten two temperature points, eliminate test error, with this, obtain the accurate temperature of importing and exporting fluid.
Electric heating system in experimental provision of the present invention adopts heating plate to heat passage outer side surface, the experimental error that the type of heating of homogenising has avoided channel wall local temperature difference to cause.
[accompanying drawing explanation]
Fig. 1 is experimental provision integral layout figure of the present invention;
Fig. 2 is the one-sided cover plate schematic diagram of experiment channel;
Fig. 3 (a) and Fig. 3 (b) are respectively the protruding mobile control structure three-dimensional plot of ball-and-socket and ball;
Fig. 4 is that exhibition is to filling block schematic diagram;
Fig. 5 is flow direction filling block schematic diagram;
Fig. 6 is ball-and-socket fork row arrangement X schematic diagram;
Fig. 7 is ball-and-socket fork row arrangement X assembling process schematic diagram;
Fig. 8 is ball-and-socket fork row arrangement X top view;
Fig. 9 is ball-and-socket in-line arrangement arrangement Y schematic diagram;
Figure 10 is ball-and-socket in-line arrangement arrangement Y top view.
Wherein: the 1st, buncher, the 2nd, centrifugal pump, the 3rd, test section (the protruding rectangular channel of band ball-and-socket/ball), the 4th, differential pressure transmitter, the 5th, Thermistor Temperature Measurement system, the 6th, electric heating system, the 7th, flowmeter, 8 and 9 is water tank temperature control systems, the 10th, water tank;
[embodiment]
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Referring to shown in Fig. 1 to Figure 10, the fluidic heat exchange of fluids experimental provision of the protruding mobile control structure of band ball-and-socket/ball of the present invention, comprises that buncher 1, centrifugal pump 2, test section 3, differential pressure transmitter 4, Thermistor Temperature Measurement system 5, electric heating system 6 are, flowmeter 7, water tank temperature control system 8 and water tank 10.
The water delivering orifice of water tank 10 is communicated with test section entrance by feeder connection section, and test section outlet is communicated with the entrance of centrifugal pump 2 by channel outlet section, and the outlet of centrifugal pump 2 is by pipeline communication water tank 10.Feeder connection Duan Weiyuan turns square joint, for connecting pipe and the square test section entrance of water tank 10 outlets; Channel outlet Duan Weifang turns round splce, with the entrance pipe that connects square test section outlet and centrifugal pump 2.
Referring to Fig. 2-Fig. 5, the selected material of this four part-structure is identical, in Fig. 2 experiment channel lower cover 11 medial recess regions 110, according to design parameter, adopt ball-and-socket 12 and protruding 13 structures of ball in Fig. 3 to combine filling, position is opened up to spacing and is flowed to spacing depending on it and arranges, in passage, not filling the exhibition of ball-and-socket/ball male structure selects the exhibition of Fig. 4 to fill to filling block 14 to position, in passage, not filling the position that flows to of ball-and-socket/ball male structure selects the filling block 15 that flows to of Fig. 5 to fill, this filling block is that the geometric parameter when with ball-and-socket/ball male structure channels designs is divided, after filling, can guarantee the integrality of channel architecture.In actual use, often need to change the array mode of the interior ball-and-socket 12 of passage and protruding 13 structures of ball, exhibition is to spacing, flow to the parameters such as spacing, existing method of processing at numerical control machining center need to be made passage global formation, when transformation geometry parameter each time, need to re-start the processing of whole passage, waste time and energy, and the versatility of each parts is poor, especially in the time need to adopting the passage of ball-and-socket and the protruding alternate combination of ball, in the situation that channel architecture size is less, be difficult to accurately process at numerical control machining center, and employing brick pattern blockstructured method for designing, batch machining ball-and-socket/ball male structure unit separately, process time and machining precision have been accelerated, only need open up to filling block and flow to filling block structure by adjustment, just can arbitrarily be combined into according to actual needs different ball-and-socket/ball male structure passages, and can obtain quickly and easily the protruding different exhibitions of ball-and-socket/ball to spacing and the channel architecture that flows to spacing, and can obtain ball-and-socket and the various mutual combination forms of ball male structure, enriched research contents, greatly reduce passageway machining time and expense.
Referring to Fig. 6-Fig. 8, the ball-and-socket fork being combined to filling block 14 by experiment channel lower cover 11, ball-and-socket 12, exhibition is arranged and is put passage, the channel architecture that Fig. 6 has assembled for part, Fig. 7 is the schematic diagram of this part assembling process, each unit module is assemblied in the sunk area 110 on experiment channel lower cover 11 successively, and adopt according to actual needs filling block to open up to termination filling, combine ball-and-socket fork row structure channel.Fig. 8 is the top view of this unitized construction.Ball male structure passage and ball-and-socket and ball convex combination structure channel assembling mode and said method are similar.
Referring to Fig. 9 and Figure 10, by experiment channel lower cover 11, ball-and-socket 12, exhibition to filling block 14, flow to the ball-and-socket in-line arrangement layout passage that filling block 15 combines, Fig. 9 is the channel architecture that part has been assembled, Figure 10 is its top view, depending on actual needs, ball-and-socket 12 is filled in the sunk area 110 on experiment channel lower cover 11, and open up to filling block 14 to adding in exhibition, streamwise adds and flows to filling block 15 12 of ball-and-sockets, with this, adjust the relative spacing that flows to of ball-and-socket 12, obtain the channel architecture under various geometric.Ball male structure passage and ball-and-socket and ball convex combination structure channel assembling mode and said method are similar.
In the present invention, in test section 3, the ratio of width to height of square runner is 4～1, and selected channel width height is larger, corresponding with the actual conditions of the heat exchanger structures such as micro-channel heat sink, can successively the heat exchange structure under true applied environment be studied in great detail; In ball-and-socket 12/ ball protruding 13, in the height of depressions/protrusions and test section 3, the ratio of the height of square runner is 0.05～0.15, select this parameter area to carry out experimental study, can not affect under the prerequisite of runner through-current capability, obtain largely the impact of the interior ball-and-socket/ball male structure flow of aspect ratio passage and heat exchange property.
Claims (9)
1. with the fluidic heat exchange of fluids experimental provision of the protruding mobile control structure of ball-and-socket/ball, it is characterized in that, comprise buncher (1), centrifugal pump (2), test section (3), electric heating system (6), flowmeter (7), water tank temperature control system (8) and water tank (10); Buncher (1) connects described centrifugal pump (2); The water delivering orifice of water tank (10) is communicated with the test section entrance of test section (3) by feeder connection section, the test section outlet of test section (3) is communicated with the entrance of centrifugal pump (2) by channel outlet section, the outlet of centrifugal pump (2) is by pipeline communication water tank (10); Test section (3) is provided with for testing thermometric first temp measuring system of inner fluid passage (51) of test section (3) and the second temp measuring system (52), for testing the 3rd temp measuring system (53) of inner fluid passage temperature of test section (3) and the second temp measuring system (54), for measuring the poor differential pressure transmitter (4) of test section (3) pressure at two ends, for the electric heating system (6) of homogeneous heating test section (3); Test section (3) comprises experiment channel upper cover plate and the experiment channel lower cover (11) of mutual fastening; Experiment channel lower cover (11) middle part is provided with sunk area (110), is filled with the protruding mobile control structure of brick pattern ball-and-socket/ball in described sunk area (110).
2. the fluidic heat exchange of fluids experimental provision with the protruding mobile control structure of ball-and-socket/ball according to claim 1, it is characterized in that, the protruding mobile control structure of ball-and-socket/ball is filled in described sunk area (110) and is formed by some ball-and-sockets (12), ball protruding (13) and filling block combination;
Or the protruding mobile control structure of ball-and-socket/ball is filled in described sunk area (110) and is formed by some ball-and-sockets (12) and filling block combination;
Or the protruding mobile control structure of ball-and-socket/ball is filled in described sunk area (110) and is formed by some balls protruding (13) and filling block combination.
3. the fluidic heat exchange of fluids experimental provision with the protruding mobile control structure of ball-and-socket/ball according to claim 2, is characterized in that, described ball-and-socket (12)/ball protruding (13) is the square block with bulb-shaped recess/projection; Described filling block comprises exhibition to filling block (14) and/or flows to filling block (15); Described filling block be used for filling ball-and-socket (12)/ball protruding (13) exhibition to/flow to and passage cover plate (11) between space.
4. the fluidic heat exchange of fluids experimental provision with the protruding mobile control structure of ball-and-socket/ball according to claim 2, is characterized in that, described some ball-and-sockets (12)/ball protruding (13) is big or small, shape is identical with material.
5. the fluidic heat exchange of fluids experimental provision with the protruding mobile control structure of ball-and-socket/ball according to claim 1, is characterized in that, the first temp measuring system and the second temp measuring system are arranged at respectively outlet and the porch of test section (3); The 3rd temp measuring system and the 4th temp measuring system are arranged at respectively outlet and the porch of test section (3).
6. the fluidic heat exchange of fluids experimental provision with the protruding mobile control structure of ball-and-socket/ball according to claim 1, is characterized in that, feeder connection Duan Weiyuan turns square joint, and channel outlet Duan Weifang turns round splce.
7. the fluidic heat exchange of fluids experimental provision with the protruding mobile control structure of ball-and-socket/ball according to claim 2, is characterized in that, test section is formed with square runner in (3), and the ratio of width to height of described square runner is 4～1; In ball-and-socket (12)/ball protruding (13), in the height of depressions/protrusions and test section (3), the ratio of the height of square runner is 0.05～0.15.
8. the fluidic heat exchange of fluids experimental provision with the protruding mobile control structure of ball-and-socket/ball according to claim 1, it is characterized in that, centrifugal pump (2) is under the control of buncher (1), drive fluid flows, fluid is flowed through and is entered the test section (3) of the protruding mobile control structure of dribbling nest/ball after feeder connection section and test section entrance by water tank (10), test section in experiment (3) adopts electric heating system (6) to carry out homogenising heating, external heat source is provided, in this process, by the first temp measuring system and the second temp measuring system, carried out the channel wall temperature survey of test section (3), by the 3rd temp measuring system and the 4th temp measuring system, carry out the inner fluid passage temperature survey of test section (3), by differential pressure transmitter (4), measure test section (3) pressure at two ends poor, obtain channel flow drag parameter, fluid flows out after test section outlet section, via centrifugal pump (2), enter upside closed circuit, and through flowmeter (7) experiments of measuring flow, return to subsequently water tank (10) and complete flow circuit, in water tank (10), be provided with water tank temperature control system (8), water tank (10) inner fluid is carried out to temperature survey and the cooling control that heats up, make the fluid that returns to water tank (10) through channel cycle in water tank (10), recover design temperature.
9. the fluidic heat exchange of fluids experimental provision with the protruding mobile control structure of ball-and-socket/ball according to claim 8, is characterized in that, described fluid is non-Newtonian fluid, nano-fluid, organic working medium and the fluid that is mutually combined to form thereof.
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| CN201310545250.9A CN103616404B (en) | 2013-11-05 | 2013-11-05 | With the fluidic heat exchange of fluids experimental provision of ball-and-socket and/or the convex flowing control structure of ball |
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| CN201310545250.9A CN103616404B (en) | 2013-11-05 | 2013-11-05 | With the fluidic heat exchange of fluids experimental provision of ball-and-socket and/or the convex flowing control structure of ball |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105547929A (en) * | 2015-12-29 | 2016-05-04 | 吉林大学 | Device for measuring elastic heat-conductive surface flow field parameters |
| CN106248724A (en) * | 2016-07-19 | 2016-12-21 | 西安交通大学 | A kind of turbine blade cooling duct heat transfer experiment system with ball-and-socket/ball male structure |
| CN106950248A (en) * | 2017-02-22 | 2017-07-14 | 华南理工大学 | A kind of big temperature of magnetic Nano fluid heat transferring coefficient is across method of testing |
| CN106996856A (en) * | 2016-01-22 | 2017-08-01 | 中国石油大学(华东) | Pipe flow and the experimental system of heat exchange rule are plunderred outside a kind of test low temperature seawater |
| CN108872304A (en) * | 2018-06-25 | 2018-11-23 | 西安交通大学 | A kind of steam generator inclination tube bank local heat transfer device and method |
| CN108982113A (en) * | 2018-04-26 | 2018-12-11 | 西安交通大学 | A kind of two-phase experimental system for turbine blade leading edge impinging cooling |
| CN111397932A (en) * | 2020-03-24 | 2020-07-10 | 深圳职业技术学院 | Heat exchanger multi-field synchronous measurement system and method |
| CN111964514A (en) * | 2020-08-29 | 2020-11-20 | 燕山大学 | Xanthan gum-non-Newtonian nanofluid heat exchanger under pulsating flow field |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547929A (en) * | 2015-12-29 | 2016-05-04 | 吉林大学 | Device for measuring elastic heat-conductive surface flow field parameters |
| CN106996856A (en) * | 2016-01-22 | 2017-08-01 | 中国石油大学(华东) | Pipe flow and the experimental system of heat exchange rule are plunderred outside a kind of test low temperature seawater |
| CN106248724A (en) * | 2016-07-19 | 2016-12-21 | 西安交通大学 | A kind of turbine blade cooling duct heat transfer experiment system with ball-and-socket/ball male structure |
| CN106248724B (en) * | 2016-07-19 | 2019-02-05 | 西安交通大学 | It is a kind of with ball-and-socket/ball male structure turbine blade cooling duct heat transfer experiment system |
| CN106950248A (en) * | 2017-02-22 | 2017-07-14 | 华南理工大学 | A kind of big temperature of magnetic Nano fluid heat transferring coefficient is across method of testing |
| CN108982113A (en) * | 2018-04-26 | 2018-12-11 | 西安交通大学 | A kind of two-phase experimental system for turbine blade leading edge impinging cooling |
| CN108872304A (en) * | 2018-06-25 | 2018-11-23 | 西安交通大学 | A kind of steam generator inclination tube bank local heat transfer device and method |
| CN108872304B (en) * | 2018-06-25 | 2019-04-09 | 西安交通大学 | A kind of steam generator inclination tube bank local heat transfer device and method |
| CN111397932A (en) * | 2020-03-24 | 2020-07-10 | 深圳职业技术学院 | Heat exchanger multi-field synchronous measurement system and method |
| CN111964514A (en) * | 2020-08-29 | 2020-11-20 | 燕山大学 | Xanthan gum-non-Newtonian nanofluid heat exchanger under pulsating flow field |
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