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发表于 2007-6-5 12:28:13
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结构网格,非结构网格,有何异同
Structured Mesh:
1. can be described with i, j, k
2. neighbour information of one vertex(or element) is not needed
to be saved(known).
Advantages:
1. less memory requirement
2. faster convergence and easier to converge
3. higher accuracy
Disadvances:
1. slow to generate
2. hard to do local refinement(possible with remeshing)
Unstructured Mesh
1. can not be described with i, j, k
2. neighbour infomation of one vertex(or element) has to be saved
Advantages:
1. fast to generate
2. highly flexible for local refinement
Disadvantages:
1. memory intensive
2. hard to converge
3. lower accuracy(when compared with structured meshes)
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