| A SELF－ADAPTIVE FINITE ELEMENT METHOD FOR SOLVING 2－D EULER EQUATIONS ON THE UNSTRUCTURED MESHES |
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| 作者姓名： | Zhou Chunhua Yang Zuosheng |
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| 作者单位： | Nanjing University of Aeronautics and Astronautics，Nanjing，China，210016 |
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| 摘 要： | ＡＳＥＬＦ－ＡＤＡＰＴＩＶＥＦＩＮＩＴＥＥＬＥＭＥＮＴＭＥＴＨＯＤＦＯＲＳＯＬＶＩＮＧ２－ＤＥＵＬＥＲＥＱＵＡＴＩＯＮＳＯＮＴＨＥＵＮＳＴＲＵＣＴＵＲＥＤＭＥＳＨＥＳＺｈｏｕＣｈｕｎｈｕａ；ＹａｎｇＺｕｏｓｈｅｎｇ（ＮａｎｊｉｎｇＵｎｉｖｅｒｓｉｔｙ...
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A SELF-ADAPTIVE FINITE ELEMENTMETHOD FOR SOLVING 2-D EULEREQUATIONS ON THE UNSTRUCTURED MESHES |
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| Zhou Chunhua, Yang Zuosheng.A SELF-ADAPTIVE FINITE ELEMENTMETHOD FOR SOLVING 2-D EULEREQUATIONS ON THE UNSTRUCTURED MESHES[J].Chinese Journal of Aeronautics,1995(1). |
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| Authors: | Zhou Chunhua Yang Zuosheng |
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| Abstract: | An unstructured triangular mesh generation procedure is developed, whichmay be incoporated easily with self-adaptive mesh refinements. The procedure is char-acterized by the arbitrary distribution of nodes in a given domain, so the unstructuredmesh may be generated again rapidly after new nodes have been added to the crucial re-gions according to the numerical errors of Euler solutions. The finite element methodfor solving Euler equations combines the Galerkin spatial approximation and thetwo-step Richtmyer time-advancing scheme, and the unstructured meshes areself-adeptive refined based on a physical criterion, the entropy variations alongstreamlines, to decrase the numerical error and increase the accuracy of the solutions. |
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| Keywords: | adaptive control computational grids finite element method Eulerequations of motion |
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