The generation of a turbulent boundary layer in unsteady flow
The paper contains a description of the turbulent boundary layer generation in an accelerated flow past a rough surface. The flow phenomena are discussed and the results of the measurements are presented on the drafts. The authors distinguished three waves: a pressure wave, a strong pulsation wave and a wave of velocity field disturbances moving through the test-section during the blow. Some undimensional relations were confronted with the results of the measurements.
KeywordsTurbulence Intensity Pressure Wave Turbulent Boundary Layer Unsteady Flow Instantaneous Velocity
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- 1.Wojciechowski J. The Tunnel Study of the Generation of the Turbulent Boundary Layer and an Influence of the Obstacles on Steady and Unsteady Atmosferic Flow Fields. Ph. D. Disertation 1976-not published.Google Scholar
- 2.Houdeville R. and others. Analyse éxperimentale des caractèristiques moyennes et turbulentes d'une couche limite en écoulement pulse. The prescript presented on Euromech.73-1976.Google Scholar
- 3.Sierputowski P., Ostrowski J. Wind Forces on an Object in Accelerated Flow. Will be published in Archiwum Budowy Maszyn Nr 1, 1978-Poland.Google Scholar
- 4.Karlsson S.K.F. An Unsteady Turbulent Boundary Layer. J. Fluid Mech. 1959, 5, 622.Google Scholar