EXPERIMENTAL RESEARCH ON THE EFFECT OF PRESSURE GRADIENT AND FREE STREAM TURBULENCE ON THE BOUNDARY LAYER OF A FLAT ROUGH PLATE.
POLITECNICO DI TORINO (ITALY) ISTITUTO DI MECCANICA APPLICATA
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A determination was made of displacement thickness and momentum loss thickness in the boundary layer of a rough flat plate at low velocities, at various conditions of wall roughness, pressure gradient and free stream turbulence. The opportunity is discussed to assume y zero at the top plane of the rough surface, taking as additional parameter the flow velocity at the wall. New results are indicated about the slowing down of the stream near the wall, about the turbulence mainly initial effect, about the presence of a boundary layer above the boundary layer, as a consequence of the combined action of pressure gradient and free stream turbulence. Author
- Fluid Mechanics