New CFD validation method with application to verify computations of near wall flows

For high Re number flows, a new computational fluid dynamics (CFD) validation method, namely, wall-surface compatibility criteria method and also called Gao's criteria, is proposed to verify near wall flows. As examples, Gao's criteria method and other two CFD verification methods (analytic solutions method and grid convergence analysis) are used to verify FLUENT's near wall flows solutions for two-dimensional incompressible laminar stagnation-point flows. The exact solution of the Navier-Stokes equations for laminar stagnation-point flows satisfy accurately all Gao's criteria, numerical simulations of laminar stagnation-point flows show that when physical parameters (the pressure coefficient and the Stanton number at wall surface) achieve convergence with more and more fine-screen grid, a part of Gao's criteria are not satisfied.