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Experiments in Fluids

, Volume 35, Issue 5, pp 472–476 | Cite as

Experimental study of a laminar air boundary layer over a water surface

  • Y. S. Tsai
  • A. J. Grass
  • R. R. Simons
Original Paper

Abstract

The formation of a laminar boundary layer over a water surface has been experimentally studied for the case of a low wind speed of 3.77 m/s without pressure gradient. Velocity profiles were measured using a small total head tube with an external diameter D=0.7 mm in order to detect the velocity as close to the air/water interface as possible. Precision data were obtained by close attention being paid to near boundary correction procedures arising from the effects of viscous, velocity gradient and wall proximity on the pressure tube. Measurements for the first time support Lock's theory.

Keywords

Velocity Profile Wind Tunnel Laminar Boundary Layer Pressure Tube Pitot Tube 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgement

The authors wish to express their thanks to Mr. Keith Harvey, Mr. Bill Fairman, and Mr. Paul Mennel for their technical support in construction and operation of the experimental equipments.

References

  1. Akylas TR (1982) A nonlinear theory for the generation of water waves by wind. Stud Appl Math 67:1–24Google Scholar
  2. Blasius H (1908) Grenzschichten in Flüssigkeiten mit kleiner Reibung. Z Math Phys 56:1–37; English translation in NACA TM 1256Google Scholar
  3. Blennerhassett PJ (1980) On the generation of waves by wind. Phil Trans R Soc Lond A 298:451Google Scholar
  4. Chue SH (1975) Pressure probes for fluid measurement. Prog Aerospace Sci 16:147–223Google Scholar
  5. Gupta AK, Landahl MT, Mollo-Christensen EL (1968) Experimental and theoretical investigation of the stability of air flow over a water surface. J Fluid Mech 33:673–691Google Scholar
  6. Howarth L (1938) On the solution of the laminar boundary layer equations. Proc R Soc Lond A 164:547–579Google Scholar
  7. Lock RC (1951) The velocity distribution in the laminar boundary layer between parallel streams. Q J Mech Appl Math 4:42–63Google Scholar
  8. MacMillan FA (1954) Viscous effects on flattened Pitot tubes at low speeds. J R Aeronaut Soc 58:837–839Google Scholar
  9. MacMillan FA (1956) Experiments on Pitot-tubes in shear flow. ARC Reports and Memoranda No 3028Google Scholar
  10. Morland LC, Saffman PG (1993) Effect of wind profile on the instability of wind blowing over water. J Fluid Mech 252:383–398Google Scholar
  11. Nelson JJ, Alving AE, Joseph DD (1995) Boundary layer flow of air over water on a flat plate, J Fluid Mech 284:159–169Google Scholar
  12. Ozgen S, Degrez G, Aama GSR (1998) Two-fluid boundary layer stability. Phys Fluids 10:2746–2757CrossRefGoogle Scholar
  13. Potter OE (1957) Laminar boundary layers at the interface of co-current parallel streams. Q J Mech Appl Math 10:302–311Google Scholar
  14. Tsai YS (2002) The interaction of gravity-capillary water waves with a laminar air flow. PhD thesis, University of LondonGoogle Scholar
  15. Timoshin SN (1997) Instabilities in a high-Reynolds-number boundary layer on a film-coated surface. J Fluid Mech 353:163–195CrossRefGoogle Scholar

Copyright information

© Springer-Verlag 2003

Authors and Affiliations

  1. 1.J. M. Burgers Centre for Fluid DynamicsDelft University of Technology DelftThe Netherlands
  2. 2.Department of Civil and Environmental EngineeringUniversity College LondonLondonUK

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