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Mesh generation: Art or science?

机译：网格生成：艺术还是科学？

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Mesh generation has evolved to the point where highly complicated domains can be covered by a variety of mesh types including hexahedral, tetrahedral and overset meshes. The application of these methods to computational aerodynamics has become a routine exercise and numerical predictions over complete aircraft now complement experimental results obtained from wind tunnels. This paper surveys the main developments that have taken place and traces the evolution of mesh generation over the last 35 years. This is followed by an assessement of the accuracy of Navier Stokes codes that are currently in use for predicting the drag of an aircraft at transonic cruise. The relationship between solution accuracy, mesh size and mesh type is examined in some detail and the implications for further research are discussed.
机译：网格生成已经发展到可以用各种网格类型（包括六面体，四面体和覆盖网格）覆盖高度复杂的区域的程度。这些方法在空气动力学计算中的应用已成为常规练习，整个飞机上的数值预测现已补充了从风洞获得的实验结果。本文概述了过去35年中发生的主要发展并追踪了网格生成的演变。随后评估当前用于预测跨音速巡航飞机阻力的Navier Stokes码的准确性。详细讨论了求解精度，网格尺寸和网格类型之间的关系，并讨论了进一步研究的意义。

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