Numerical simulations of mass transfer in turbulent pipe flow at high schmidt numbers

Numerical simulations for the wall mass transfer in a turbulent pipe flow were performed at Reynolds numbers (Re) of 40,000, 70,000 and 100,000 and Schmidt number (Sc) of 100, 200, 400 and 1280. Six versions of Low Reynolds Number (LRN) k-ε turbulence models were evaluated by examining the variation of the turbulent viscosity and diffusivity in the wall-normal direction. The predicted values of the turbulent viscosity and diffusivity from the …