DNS of turbulent flows of dense gases
作者： L Sciacovelli , P Cinnella , X Gloerfelt , F Grasso
DOI: 10.1088/1742-6596/821/1/012018
关键词:
摘要: The influence of dense gas effects on compressible turbulence is investigated by means numerical simulations the decay homogeneous isotropic (CHIT) and supersonic turbulent flows through a plane channel (TCF). For both configurations, parametric study Mach Reynolds numbers carried out. considered in these studies PP11, heavy fluorocarbon. results are systematically compared to those obtained for diatomic perfect (air). In our computations, thermodynamic behaviour gases modelled Martin-Hou equation state. CHIT cases, initial up 1 analyzed using mesh resolutions 5123. TCF, bulk 3 12000 investigated. Average profiles quantities exhibit significant differences with respect perfect-gas solutions configurations. high-Mach CHIT, structures modified air, weaker eddy shocklets stronger expansions. velocity much less sensitive number collapse reasonably well logarithmic region without any special need scalings, unlike case overall flow midway between that variable-property liquid gas.
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