Effect of suction on boundary-layer flow over a 2-D slot
Abstract
The basic fluid phenomena associated with a Blasius boundary layer over a flat plate approaching a two-dimensional suction slot are investigated both experimentally in an open water channel facility and numerically by solving the complete two-dimensional Navier-Stokes equations using an alternating direction implicit scheme. The experiments are performed for three suction mass flow rates using a hot film anemometer and the computations are made for slot Reynolds numbers ranging from 20 to 300. Results exhibit considerable upstream and downstream influence upon boundary layer integral parameters and wall shear due to the suction. The numerical results show the proper sink effect in the vicinity of the slot and a presence of a separation bubble inside the slot at all slot Reynolds numbers.
- Publication:
-
AIAA, Aerospace Sciences Meeting
- Pub Date:
- January 1982
- Bibcode:
- 1982aiaa.meetX....K
- Keywords:
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- Blasius Flow;
- Boundary Layer Flow;
- Computational Fluid Dynamics;
- Flat Plates;
- Flow Measurement;
- Slots;
- Suction;
- Aerodynamic Drag;
- Drag Reduction;
- Finite Difference Theory;
- Hot-Film Anemometers;
- Mass Flow Rate;
- Navier-Stokes Equation;
- Neumann Problem;
- Reynolds Number;
- Shear Flow;
- Wall Flow;
- Fluid Mechanics and Heat Transfer