GB340379A - Improvements in tubing with stepped inner surface - Google Patents
Improvements in tubing with stepped inner surfaceInfo
- Publication number
- GB340379A GB340379A GB35355/29A GB3535529A GB340379A GB 340379 A GB340379 A GB 340379A GB 35355/29 A GB35355/29 A GB 35355/29A GB 3535529 A GB3535529 A GB 3535529A GB 340379 A GB340379 A GB 340379A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nov
- fluid
- steps
- tubing
- main stream
- 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.)
- Expired
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
- F15D1/02—Influencing flow of fluids in pipes or conduits
- F15D1/06—Influencing flow of fluids in pipes or conduits by influencing the boundary layer
- F15D1/065—Whereby an element is dispersed in a pipe over the whole length or whereby several elements are regularly distributed in a pipe
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
340,379. Metal tubes. ANTONI, U., 56, Via Ugo Foscolo, Viareggio, Italy. Nov. 19, 1929, No. 35355. Convention date, Nov. 23, 1928. [Class 99 (ii).] A tube A is provided on its inner wall with steps B inclined in the direction of the flow of fluid D as shown so as to reduce the resistance to flow caused by skin friction. The frictional resistance will occur only between the main stream and any fluid in the chambers C, formed by the steps B and in which a partial vacuum is generated, instead of between the main stream and the tube wall.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT340379X | 1928-11-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB340379A true GB340379A (en) | 1931-01-01 |
Family
ID=11238912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB35355/29A Expired GB340379A (en) | 1928-11-23 | 1929-11-19 | Improvements in tubing with stepped inner surface |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB340379A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2841182A (en) * | 1955-12-29 | 1958-07-01 | Westinghouse Electric Corp | Boundary layer fluid control apparatus |
US2997229A (en) * | 1959-10-06 | 1961-08-22 | Means for removing moisture from a surface | |
US3631825A (en) * | 1966-01-22 | 1972-01-04 | Heinrich Weiste | Apparatus for distributing and spreading material |
US4281964A (en) * | 1980-01-21 | 1981-08-04 | Black & Decker Inc. | Turbine housing and method for making the same |
WO1991002207A1 (en) * | 1989-08-09 | 1991-02-21 | Clifford, Bryan, Thomas | Heat exchangers |
US5263793A (en) * | 1991-11-19 | 1993-11-23 | Ormat Industries, Ltd. | Method of and apparatus for controlling turbulence in a wall-bounded fluid flow field |
US5362179A (en) * | 1991-11-19 | 1994-11-08 | Lawrence Sirovich | Method of and apparatus for controlling turbulence in a wall-bounded fluid flow field |
WO2011082893A1 (en) * | 2009-12-15 | 2011-07-14 | Sms Siemag Ag | Nozzle device and strand guiding device having said nozzle device |
CN113380663A (en) * | 2020-03-09 | 2021-09-10 | Hs高科技股份有限公司 | Two-fluid nozzle for cleaning substrate |
-
1929
- 1929-11-19 GB GB35355/29A patent/GB340379A/en not_active Expired
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2841182A (en) * | 1955-12-29 | 1958-07-01 | Westinghouse Electric Corp | Boundary layer fluid control apparatus |
US2997229A (en) * | 1959-10-06 | 1961-08-22 | Means for removing moisture from a surface | |
US3631825A (en) * | 1966-01-22 | 1972-01-04 | Heinrich Weiste | Apparatus for distributing and spreading material |
US4281964A (en) * | 1980-01-21 | 1981-08-04 | Black & Decker Inc. | Turbine housing and method for making the same |
WO1991002207A1 (en) * | 1989-08-09 | 1991-02-21 | Clifford, Bryan, Thomas | Heat exchangers |
US5263793A (en) * | 1991-11-19 | 1993-11-23 | Ormat Industries, Ltd. | Method of and apparatus for controlling turbulence in a wall-bounded fluid flow field |
US5362179A (en) * | 1991-11-19 | 1994-11-08 | Lawrence Sirovich | Method of and apparatus for controlling turbulence in a wall-bounded fluid flow field |
AU658692B2 (en) * | 1991-11-19 | 1995-04-27 | Ormat Industries Ltd. | Method of and apparatus for controlling turbulence in a wall-bounded flow field |
WO2011082893A1 (en) * | 2009-12-15 | 2011-07-14 | Sms Siemag Ag | Nozzle device and strand guiding device having said nozzle device |
CN102802837A (en) * | 2009-12-15 | 2012-11-28 | Sms西马格股份公司 | Nozzle device and strand guiding device having said nozzle device |
CN113380663A (en) * | 2020-03-09 | 2021-09-10 | Hs高科技股份有限公司 | Two-fluid nozzle for cleaning substrate |
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