RECONSTRUCTION OF THE VORTEX-JET STRUCTURE OF THE SEPARATION TURBULENT FLOW IN A SPHERICAL DIMPLE ON THE WALL OF A NARROW CHANNEL WITH INCREASE IN THE DEPTH OF THE DIMPLE AND INTENSIFICATION OF THE SECONDARY FLOW IN IT

On the basis of an analysis of the reconstruction of the vortex-jet structure of the completely developed turbulent fl ow of an incompressible fl uid in a spherical dimple on the wall of a narrow plane-parallel channel with increase in the depth of the dimple, a map of regimes of separation fl ow around such a dimple at a Reynolds number of 40,000 has been developed with special emphasis on the intensifi cation of the multivortex fl ow formed in the indicated dimple in the case where a symmetric fl ow in it is changed to the axisymmetric one.
   
Author:  S. A. Isaev, A. I. Leont′ev, A. V. Shchelchkov, and M. E. Gul′tsova
Keywords:  spherical dimple, narrow plane-parallel channel, swirling flow, turbulence.
Page:  1304