A three-dimensional incompressible Navier-Stokes flow solver using primitive variables
A three-dimensional incompressible Navier-Stokes flow solver using primitive variables
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DOI：
10.2514/3.9279
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发表时间：
1986-03
期刊：
影响因子：
2.5
通讯作者：
D. Kwak;James L. C. Chang;S. Shanks;S. Chakravarthy
中科院分区：
文献类型：
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作者：
D. Kwak;James L. C. Chang;S. Shanks;S. Chakravarthy
已经开发出一种隐式有限差分计算机代码，用于在三维曲线坐标系中求解不可压缩的纳维 - 斯托克斯方程。压力场的求解基于伪压缩性方法，其中在质量守恒方程中引入了一个时间导数压力项。求解过程采用隐式近似分解格式。与隐式格式解耦的雷诺应力滞后一个时间步长，以便于实施不同层次的湍流模型。对外部和内部流动的测试问题进行了计算机模拟，并将结果与现有的实验数据进行了比较。然后展示了该技术在一般三维问题中的应用。
An implicit, finite difference computer code has been developed to solve the incompressible Navier-Stokes equations in a three-dimensional curvilinear coordinate system. The pressure field solution is based on the pseudocompressibility approach in which a time derivative pressure term is introduced into the mass conservation equation. The solution procedure employs an implicit, approximate factorization scheme. The Reynolds Stresses, which are uncoupled from the implicit scheme, are lagged by one time step to facilitate implementing various levels of the turbulence model. Test problems for external and internal flows are computer and the results are compared with existing experimental data. The application of this technique for general three-dimensional problems is then demonstrated.