Determinant 2x2x2是什么意思？

abrahamgx

Determinant 2x2x2什么意思？
  Determinant 3x3x3又是什么意思呢？
谢谢！

fengabc6532

雅可比矩阵

abrahamgx

2# fengabc6532
谢谢！可不可以详细说一下呢？或者有没有资料可以看？

windteller

Determinant (2x2x2 stencil)
The Determinant, more properly defined as the relative determinant, is the ratio of the smallest determinant of the Jacobian matrix divided by the largest determinant of the Jacobian matrix. In this option, the determinant at each corner of the hexahedron is found. A Determinant value of 1 would indicate a perfectly regular mesh element, 0 would indicate an element degenerate in one or more edges, and negative values would indicate inverted elements.

Determinant (3x3x3 stencil)
This option is the same as the 2x2x2 stencil, but edge midpoints of blocks are added to the Jacobian computation.

billzmy

good job
4# windteller

nuaa1981

知道了点知识。

uomhkor

感谢，学习了

manhjx

学习了谢谢

chongmoon

学习了 谢谢

limmneu

windteller 发表于 2010-12-13 21:37
Determinant (2x2x2 stencil)
The Determinant, more properly defined as the relative determinant, is t ...

请问那和aspect ratio， angle，等评价标准有什么关系呢？

F22猛禽87

学习了，谢谢

5超7

limmneu 发表于 2012-7-25 11:10
请问那和aspect ratio， angle，等评价标准有什么关系呢？

没有必然的关系，我的观点，雅阁比高不代表angle的指标就一定好！