雷诺平均Navier-Stokes方程
湍流
湍流动能
消散
机械
雷诺数
大涡模拟
分离涡模拟
物理
纳维-斯托克斯方程组
统计物理学
热力学
压缩性
作者
Sharath S. Girimaji,Ravi Srinivasan,Eunmi Jeong
标识
DOI:10.1115/fedsm2003-45336
摘要
Partially-averaged Navier-Stokes (PANS) approach has been recently developed as a possible bridging model between Reynolds-averaged Navier-Stokes (RANS) method and large-eddy simulations (LES). The resolution control parameters in PANS are the fractions of unresolved kinetic energy (fk) and unresolved dissipation (fε). We investigate the fixed-point behavior of PANS and present some preliminary results obtained using this model. By comparing the fixed-point behavior of PANS and URANS (unsteady Reynolds-averaged Navier-Stokes) methods, the possible advantage of the former over the latter is explained. Initial results from two-dimensional simulations of flow past square results are also presented.
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