FR2348386A1 - Rotating surface past which fluid flows without turbulence - covered with randomly open-celled material and used for liq. or gas sepn. - Google Patents

Rotating surface past which fluid flows without turbulence - covered with randomly open-celled material and used for liq. or gas sepn.

Info

Publication number
FR2348386A1
FR2348386A1 FR7423060A FR7423060A FR2348386A1 FR 2348386 A1 FR2348386 A1 FR 2348386A1 FR 7423060 A FR7423060 A FR 7423060A FR 7423060 A FR7423060 A FR 7423060A FR 2348386 A1 FR2348386 A1 FR 2348386A1
Authority
FR
France
Prior art keywords
liq
turbulence
covered
fluid flows
celled material
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
Application number
FR7423060A
Other languages
French (fr)
Other versions
FR2348386B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR7423060A priority Critical patent/FR2348386A1/en
Publication of FR2348386A1 publication Critical patent/FR2348386A1/en
Application granted granted Critical
Publication of FR2348386B1 publication Critical patent/FR2348386B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/10—Influencing flow of fluids around bodies of solid material
    • F15D1/12—Influencing flow of fluids around bodies of solid material by influencing the boundary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C21/00—Influencing air flow over aircraft surfaces by affecting boundary layer flow
    • B64C21/10—Influencing air flow over aircraft surfaces by affecting boundary layer flow using other surface properties, e.g. roughness
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • F04D17/161—Shear force pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/10—Drag reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

A rotating three-dimensional surface, to which the boundary layer of a moving fluid can adhere is composed of a randomly open-celled material as (pref. thin) covering for an impermeable support; the dia. increases in the downstream direction, at least for part of the length. The cellular covering may be plastic, ceramic or metal, and may line the support on the convex or concave side. The rotating covered surface may be used to make, e.g. a noise-free ventilator opening, or a turbulence-free flow accelerator, and is esp. useful for liq. or gas sepn. processes.
FR7423060A 1974-06-25 1974-06-25 Rotating surface past which fluid flows without turbulence - covered with randomly open-celled material and used for liq. or gas sepn. Granted FR2348386A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7423060A FR2348386A1 (en) 1974-06-25 1974-06-25 Rotating surface past which fluid flows without turbulence - covered with randomly open-celled material and used for liq. or gas sepn.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7423060A FR2348386A1 (en) 1974-06-25 1974-06-25 Rotating surface past which fluid flows without turbulence - covered with randomly open-celled material and used for liq. or gas sepn.

Publications (2)

Publication Number Publication Date
FR2348386A1 true FR2348386A1 (en) 1977-11-10
FR2348386B1 FR2348386B1 (en) 1982-08-13

Family

ID=9140804

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7423060A Granted FR2348386A1 (en) 1974-06-25 1974-06-25 Rotating surface past which fluid flows without turbulence - covered with randomly open-celled material and used for liq. or gas sepn.

Country Status (1)

Country Link
FR (1) FR2348386A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2596108A1 (en) * 1986-03-22 1987-09-25 Usui Kokusai Sangyo Kk BLADES FOR FAN PROPELLER
WO2004097203A1 (en) * 2003-05-02 2004-11-11 Krugmann, Hanns-Michael Propulsion of vehicles or transport of a medium by means of a conical body
WO2010145641A3 (en) * 2009-06-15 2011-07-28 Werner Henze Water jet pump type drive, in particular for a flying object

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR40477E (en) * 1931-07-04 1932-07-01 Sprayer
US1903823A (en) * 1928-12-28 1933-04-18 Lougheed Victor Aerodynamic surface
GB705798A (en) * 1951-05-10 1954-03-17 Peter Schlumbohm Ventilators

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1903823A (en) * 1928-12-28 1933-04-18 Lougheed Victor Aerodynamic surface
FR40477E (en) * 1931-07-04 1932-07-01 Sprayer
GB705798A (en) * 1951-05-10 1954-03-17 Peter Schlumbohm Ventilators

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2596108A1 (en) * 1986-03-22 1987-09-25 Usui Kokusai Sangyo Kk BLADES FOR FAN PROPELLER
WO2004097203A1 (en) * 2003-05-02 2004-11-11 Krugmann, Hanns-Michael Propulsion of vehicles or transport of a medium by means of a conical body
WO2010145641A3 (en) * 2009-06-15 2011-07-28 Werner Henze Water jet pump type drive, in particular for a flying object

Also Published As

Publication number Publication date
FR2348386B1 (en) 1982-08-13

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