首页> 外文期刊>Numerical Heat Transfer, Part B. Fundamentals: An International Journal of Computation and Methodology >Nonlinear subgrid embedded finite-element basis for steady monotone CFD solutions, Part II: Benchmark Navier-Stokes solutions
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Nonlinear subgrid embedded finite-element basis for steady monotone CFD solutions, Part II: Benchmark Navier-Stokes solutions

机译:稳态单调CFD解决方案的非线性子网格嵌入式有限元基础,第二部分:基准Navier-Stokes解决方案

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摘要

A nonlinear subgrid embedded (SGM) finite-element basis is established for generating monotone solutions via a CFD weak statement algorithm. The theory confirms that only the Navier-Stokes dissipative flux vector term is appropriate for implementation of the SGM, which thereafter employs element-level static condensation for efficiency and nodal-rank homogeniety. Numerical results for select benchmark compressible and incompressible steady-state Navier-Stokes problem definitions are presented, confirming theoretical prediction for attainment of monotone solutions devoid of excess numerical diffusion on minimal-degree-of-freedom meshes. [References: 30]
机译:建立了非线性子网格嵌入式(SGM)有限元基础,以通过CFD弱语句算法生成单调解。该理论证实,只有Navier-Stokes耗散通量矢量项才适合SGM的实现,SGM随后采用元素级静态凝聚来提高效率和节点秩均一性。给出了选定基准可压缩和不可压缩稳态Navier-Stokes问题定义的数值结果,从而为获得在最小自由度网格上没有过多数值扩散的单调解的实现提供了理论预测。 [参考:30]

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