Comparative study of inflow conditions for spatially evolving simulation

Abstract

A new spatiotemporal inflow condition is devised and evaluated with other methods, i.e., temporal, phase jittering and amplitude jittering, and random noise. These methods are validated by testing a large-eddy simulation of turbulent channel flow. Computational results are presented to disclose the ability of inflow conditions to capture the turbulent statistics with correct phase information and dynamics. The present spatiotemporal inflow condition is found to be generally satisfactory in CPU time and data management.