A Strongly-Coupled Time-Marching Method for Solving the Navier-Stokes and k-omega Turbulence Model Equations with Multigrid

摘要

Many researchers use a time-lagged or loosely coupled approach in solvign the Navier-Stokes equations and two-equation turbulence model equations in a time-marching method. The Navier-Stokes equations and the turbulence model equatiosn are solved separately and often with different methods. In this paper a strongly-coupled method is presented for such calculations. The Navier-Stokes equations and two-equation turbuelnce model equations, in particular, the k-omega equations, are considered as one single set of strongly coupled equations and solved with the same explicit time-marching algorithm without time-lagging.