Higher Order Parallel DNS of Incompressible Turbulence Using Compressible Navier-Stokes Equations

摘要

The higher order parallel direct numerical simulation (DNS) of incompressible turbulence based on the compressible Navier-Stokes equations is carried out. The governing equations are solved by the higher order method of lines with shifted flux technique. The present higher order solutions are compared with the higher order incompressible ones obtained by the variable order method of lines. In the range of Ma=0.01, both higher order solutions are in excellent agreement with each other. In the parallel computation, the present approach shows the almost theoretical speedup.