Assessment of inflow boundary conditions for compressible turbulent boundary layers
Assessment of inflow boundary conditions for compressible turbulent boundary layers
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DOI：
10.1063/1.1758218
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发表时间：
2004-06
影响因子：
4.6
通讯作者：
Sheng Xu;M. Martín
中科院分区：
文献类型：
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作者：
Sheng Xu;M. Martín
描述了湍流边界层的不同入流方法，包括有效性和局限性。我们发现，在不改变控制方程的情况下，使用真正的周期边界条件，会导致平均流动的增加和湍流的衰减。提出并解释了使用有效的前提，并与扩展时间方法[T.Maeder，N.A.Adams和L.Kleiser]进行了比较，《用扩展时间方法直接模拟湍流超音速边界层》，J.流体力学。429,187(2001)]用于评价效度。推广了Lund等人的工作。访问数/每百万人：Reach for[J.太棒了。140,233(1998)]，我们提出了一种用于可压缩湍流边界层空间模拟的流入生成方法。该方法通过将重新缩放的下游流场重新引入到计算域的入口处来产生流入。重新调整比例是基于Morkovin的假设[P.Bradshaw，“可压缩湍流剪切层，”...
A description of different inflow methodologies for turbulent boundary layers, including validity and limitations, is presented. We show that the use of genuine periodic boundary conditions, in which no alteration of the governing equations is made, results in growing mean flow and decaying turbulence. Premises under which the usage is valid are presented and explained, and comparisons with the extended temporal approach [T. Maeder, N. A. Adams, and L. Kleiser, “Direct simulation of turbulent supersonic boundary layers by an extended temporal approach,” J. Fluid Mech. 429, 187 (2001)] are used to assess the validity. Extending the work by Lund et al. [J. Comput. Phys. 140, 233 (1998)], we propose an inflow generation method for spatial simulations of compressible turbulent boundary layers. The method generates inflow by reintroducing a rescaled downstream flow field to the inlet of a computational domain. The rescaling is based on Morkovin’s hypothesis [P. Bradshaw, “Compressible turbulent shear layers,” ...