The numerical simulation of plane channel flow was performed with various turbulent models

which were employed for wall modeled large eddy simulation. Large eddy simulation (LES)

Spalart-Allmaras (S-A)

detached eddy simulation (DES) and a dynamic hybrid model (Hybrid) were investigated. Using the Reynolds numbers ranging from 395 to 12000 based on friction velocity

three kinds of coarse grid were used

the grid numbers of wall-parallel directions were set as 37

49 and 65

simultaneously.y+ (1)~1 was maintained in wall-normal direction. Mean velocity profile

Reynolds-shear stress and other turbulent statistics were predicted. It was shown that LES cannot provide accurate solutions at high Reynolds number and coarse grid conditions. Log layer mismatch was still a problem of DES. The simulation of Hybrid agreed well with direct numerical simulation (DNS)

and the resolved stress accounted for 93% in log layer and about 99% in outer layer. Therefore

proper hybrid model may provide accurate solutions with cost effectiveness and has potential to solve engineering problem.