JPS5740109A - Method and device for controlling boundary layer - Google Patents
Method and device for controlling boundary layerInfo
- Publication number
- JPS5740109A JPS5740109A JP11442080A JP11442080A JPS5740109A JP S5740109 A JPS5740109 A JP S5740109A JP 11442080 A JP11442080 A JP 11442080A JP 11442080 A JP11442080 A JP 11442080A JP S5740109 A JPS5740109 A JP S5740109A
- Authority
- JP
- Japan
- Prior art keywords
- flow
- protrusion
- fluid
- velocity
- separation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Air-Flow Control Members (AREA)
Abstract
PURPOSE: To prevent separation from occurring because the flow of fluid along a wall surface changes the proceeding direction along the wall surface, by providing a locally accelerating protrusion at the separation point on an inside boundary wall.
CONSTITUTION: A locally accelerating protrusion 3, whose outline is smooth and whose upstream part as to the direction of flow of fluid projects sharply to the flow, is provided on at a separation point on an inside boundary wall 2. At a point II of the distribution of velocity of the fluid flow in the presence of the protrusion 3, the fluid flow near the wall 2 is sharply accelerated in a short section by the protrusion 3 so that the velocity u1 near the protrusion 3 is especially heightened. An effect similar to what is called Coanda effect can be produced by changing the direction of the flow after especially increasing the momentum of the portion with the velocity u1. For that reason, the direction of the flow can be changed while holding the pressure loss down and preventing separation, without disturbing the flow and using a separate motive power source.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55114420A JPS591886B2 (en) | 1980-08-20 | 1980-08-20 | Boundary layer control method and device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55114420A JPS591886B2 (en) | 1980-08-20 | 1980-08-20 | Boundary layer control method and device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5740109A true JPS5740109A (en) | 1982-03-05 |
JPS591886B2 JPS591886B2 (en) | 1984-01-14 |
Family
ID=14637257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55114420A Expired JPS591886B2 (en) | 1980-08-20 | 1980-08-20 | Boundary layer control method and device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS591886B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3615861A1 (en) * | 1985-05-20 | 1986-11-20 | Toshiba Ceramics Co., Ltd., Tokio/Tokyo | SINTER BODY BASED ON SILICON CARBIDE AND METHOD FOR THE PRODUCTION THEREOF |
JP2013209961A (en) * | 2012-03-30 | 2013-10-10 | Ebara Corp | Pump device including separation prevention structure |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH476762A (en) * | 1961-02-06 | 1969-08-15 | Dow Corning | Process for the production of organosilanes |
JPS53119619U (en) * | 1977-03-02 | 1978-09-22 |
-
1980
- 1980-08-20 JP JP55114420A patent/JPS591886B2/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH476762A (en) * | 1961-02-06 | 1969-08-15 | Dow Corning | Process for the production of organosilanes |
JPS53119619U (en) * | 1977-03-02 | 1978-09-22 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3615861A1 (en) * | 1985-05-20 | 1986-11-20 | Toshiba Ceramics Co., Ltd., Tokio/Tokyo | SINTER BODY BASED ON SILICON CARBIDE AND METHOD FOR THE PRODUCTION THEREOF |
JP2013209961A (en) * | 2012-03-30 | 2013-10-10 | Ebara Corp | Pump device including separation prevention structure |
Also Published As
Publication number | Publication date |
---|---|
JPS591886B2 (en) | 1984-01-14 |
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