Abstract
Three-dimensional unsteady numerical flow field is visualized by using MPGS which is the multipurpose graphic system developed by CRAY research Ltd. The flow field computed by large eddy simulation (LES) is the turbulent flow over a backward facing step, The Reynolds number based on step height and main flow is 46000. Unsteady behavior of the large eddy on the computed flow field is clearly confirmed by making visual animation. Multipurpose graphic system, by which visual animation is easily produced, is available to estimate the computational unsteady flow fields.
