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Warped-Face Gradient Correction
enables an adjustment to the gradient discretization method that improves the gradient accuracy for meshes containing high aspect ratios, cells with non-flat faces, and highly deformed cells, and can help avoid numerical difficulties in simulations that involve a mesh that has large differences in the volumes of neighboring cells. By default, the fast, or more computationally efficient mode of the warped-face gradient correction is used. For additional information about the warped-face gradient correction, see Warped-Face Gradient Correction.
翻译：
启用对梯度离散化方法的调整，以提高包含高纵横比的网格、具有非平面的单元和高度变形的单元的梯度精度，并有助于避免在涉及相邻单元体积差异较大的网格的模拟中出现数值困难。默认情况下，使用扭曲面渐变校正的快速或计算效率更高的模式。有关扭曲面渐变校正的其他信息，请参见扭曲面渐变校正。
Convergence Acceleration For Stretched Meshes
Enable convergence acceleration for stretched meshes to improve the convergence of the implicit density based solver on meshes with high cell stretching (see Convergence Acceleration for Stretched Meshes (CASM)).
翻译：
启用拉伸网格的收敛加速，以改进隐式基于密度的解算器在单元拉伸程度较高的网格上的收敛（请参见拉伸网格的收敛加速（CASM））。
When using the density-based solver with the implicit solution formulation in steady-state you can accelerate the convergence of your solution on highly-stretched and anisotropic meshes (like the one used when modeling external aerodynamic problems) by selecting the Convergence Acceleration For Stretched Meshes in the Solution Methods task page. For further information and theoretical background on this solution acceleration option, see Convergence Acceleration for Stretched Meshes in the Theory Guide. The Convergence Acceleration For Stretched Meshes option provides an optimum solution convergence of the implicit solution method.
翻译
在稳态下将基于密度的解算器与隐式解公式一起使用时，可以通过在“解算方法”任务页中选择拉伸网格的收敛加速度，在高度拉伸和各向异性网格（如建模外部空气动力学问题时使用的网格）上加速解的收敛。有关此解决方案加速选项的详细信息和理论背景，请参见《理论指南》中拉伸网格的收敛加速。“拉伸网格的收敛加速”选项提供隐式解方法的最佳解收敛。
Note: When the Convergence Acceleration For Stretched Meshes option is enabled, the Pseudo Time Method option is not available. You can either use Convergence Acceleration For Stretched Meshes or the Pseudo Time Method. These two options cannot be used at the same time. Both methods help in obtaining faster convergence on anisotropic meshes. But one method requires that you enter a CFL value, while the other requires that you enter a pseudo time step value to march the solution to convergence. It is up to you to select the method with which you are most comfortable.
Convergence Acceleration For Stretched Meshes shows an advantage over the standard solution method, particularly with stretched meshes with low Y+ values (near unity). The use of Convergence Acceleration For Stretched Meshes results in an alteration of the numerical dissipation of the selected flux scheme. This change may slightly impact the monitored loading level if compared with the solution obtained without the use of this option.
翻译：
注意：启用“拉伸网格的收敛加速”选项后，“伪时间方法”选项不可用。可以对拉伸网格使用收敛加速，也可以使用伪时间方法。这两个选项不能同时使用。这两种方法都有助于在各向异性网格上获得更快的收敛速度。但一种方法要求输入CFL值，而另一种方法要求输入伪时间步长值，以使解决方案收敛。由您选择最适合的方法。
拉伸网格的收敛加速显示出优于标准解方法的优势，尤其是对于Y+值较低（接近单位）的拉伸网格。对拉伸网格使用收敛加速会改变所选通量格式的数值耗散。如果与未使用此选项获得的解决方案相比，此变化可能会对监测的加载水平产生轻微影响。
High Order Term Relaxation
enables the relaxation of high order terms to aid in the solution behavior of flow simulations when higher order spatial discretization is used.
翻译：
当使用高阶空间离散化时，可以松弛高阶项以帮助流模拟的求解行为。
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