Nearwall velocity distributions within a straight conical diffuser
Abstract
The measured mean velocity profiles at the various stations along a conical diffuser (8° total divergence angle) were found to consist of log regions, halfpower law regions and linear regions. The describing coefficients for the inner halfpower law region (which followed a rather narrow log region) differed from the standard values due to the axisymmetric geometry and lack of moving equilibrium of the flow as it attempted to adjust to a varying adverse pressure gradient. However, these coefficients (like those for the linear region) correlated with the local wall shear stress and the kinematic pressure gradient.
 Publication:

Experiments in Fluids
 Pub Date:
 November 1986
 DOI:
 10.1007/BF00266297
 Bibcode:
 1986ExFl....4..319T
 Keywords:

 Conical Flow;
 Diffusers;
 Flow Velocity;
 Velocity Distribution;
 Wall Flow;
 Flow Coefficients;
 Flow Geometry;
 Inlet Flow;
 Shear Stress;
 Fluid Mechanics and Heat Transfer