Investigation of three-dimensional turbulent flow in two different concrete casings

摘要

Based on the solution of Navier-Stokes equations and the standard k_epsilong turbulence model, the numerical simulation on internal flows through twod different concrete casings for the same runner are calculated in different operating conditions by using the body-fitted coordinate, the staggered grid system and the SIMPLEC algorithm. Simulated flow field through the casings is compared with each other. The results show that the turbulence model and numerical method employed in present work are precise and applicable to engineering utilization.