NUMERICAL SIMULATION OF TURBULENT INCOMPRESSIBLE FLOW WITH INCREASING ADVERSE PRESSURE GRADIENT

Consideration is given to separation-free plane fl ow in a boundary layer developing on a smooth diffuser wall under the action of a pressure gradient p(x), where both quantities dp/dx and d² p/dx² are positive (adverse pressure gradient). The adverse pressure gradient arose in a diffuser with plane walls (experiment F0141A). The results of numerical calculations of fl ow with a nonzero pressure gradient in the boundary layer of an incompressible liquid with the use of the near-wall k–ε model of turbulence are given. A comparison of the basic characteristics of fl ow with tested experimental and theoretical data is made.
   
Author:  V. M. Zubarev
Keywords:  turbulent fl ows, near-wall k–ε models of turbulence, boundary layer, pressure gradient, near-wall fl ows, numerical method, incompressible liquid, diffuser.
Page:  631