Reynolds Number Dependence of Higher Order Statistics for Round Turbulent Jets Using Large Eddy Simulations

摘要: Despite the large repository of experimental and computational studies on topic turbulent jets, inconclusive conflicting estimates prevail in regard to certain terms turbulence energy budget dependence (or lack dependence) these other flow physics jet Reynolds number. No comprehensive study exists which adequately addresses inconsistencies. The purpose this is resolve contradictions ascertain true statistics This accomplished through high fidelity Large Eddy Simulations (LES), are performed for a single isothermal round at three different numbers, encompassing nearly two orders magnitude. In each case, results compared well-accepted studies, excellent agreement found with quantities either directly acquired or computed from raw data. A separate discrete eddy simulation nozzle upstream inlet be crucial quantifying near field (e.g., virtual origin). Results show definite number all third order non-negligible especially mean convection production kinetic budget.