Experimental studies on laminarization of turbulent duct flow by fluid injection
Abstract
The fluid dyamics of an internal flow with injection was studied using a onecolor threebeam LDA optical system to investigate velocity fields for a turbulent flow in a duct with one porous wall through which fluid was injected at a constant rate. Results indicate that, near the porous wall, the absolute value of the Reynolds shear stress (uv) decreases rapidly near the starting point of injection. Near the upper wall, the absolute value of the uv quantity slowly decreases as the flow moves downstream, i.e., it exhibits a lamination tendency.
 Publication:

Transport Phenomena in Turbulent Flows: Theory, Experiment, and Numerical Simulation
 Pub Date:
 1988
 Bibcode:
 1988tptf.proc..311S
 Keywords:

 Ducted Flow;
 Flow Velocity;
 Fluid Injection;
 Reynolds Stress;
 Turbulent Flow;
 Velocity Measurement;
 Data Reduction;
 Laser Doppler Velocimeters;
 Shear Stress;
 Fluid Mechanics and Heat Transfer