An Evaluation of the Partially-Resolved Numerical Simulation Procedure For Near-Wall Turbulence Prediction
An Evaluation of the Partially-Resolved Numerical Simulation Procedure For Near-Wall Turbulence Prediction
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DOI：
10.2514/6.2006-115
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发表时间：
2006-01
期刊：
影响因子：
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通讯作者：
Xiaodan Cai;F. Ladeinde
中科院分区：
文献类型：
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作者：
Xiaodan Cai;F. Ladeinde
* †在本文中，我们试图评估新提出的近壁湍流预测的PRNS程序。将PRNS程序与低雷诺数湍流模型（Abid版本）相结合，计算了二维平板边界流、二维和三维后台阶流的近壁湍流结构。我们发现，与相应的RANS模型相比，具有固定模型常数（）的PRNS程序通常预测较弱的湍流结构。有人怀疑近壁网格尺寸可能不适合38的PRNS计算。0 = cp R 38。0 = cp R.在这个问题上肯定需要更多的研究。此外，PRNS程序解决大尺度能量湍流结构的能力和实用性需要进一步评估。
*† In this paper, we attempt to evaluate the newly-proposed PRNS procedures for near-wall turbulence prediction. The PRNS procedure is combined with the low-Reynolds number turbulent model (Abid’s version) to calculate the near-wall turbulent structures in twodimensional flat-plate boundary flows, two-dimensional and three-dimensional backardfacing step flows. We have found that the PRNS procedure with the fixed model constant ( ) generally predicts weaker turbulent structures as compared to its corresponding RANS model. It is suspected that the near-wall grid size may not be suitable for the PRNS calculations with 38 . 0 = cp R 38 . 0 = cp R . More studies are surely needed on this subject. Furthermore, the capability and usefulness of the PRNS procedures on resolving large-scale energetic turbulent structures require further evaluations.