| NEW APPROACHES OF MUSCL SCHEMES FOR COMPRESSIBLE FLUIDS |
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| 作者姓名： | Sung Ik SohnSchool of Information Engineering Tongmyong University of Information Technology Yongdang dong Pusan Korea |
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| 作者单位： | Sung Ik SohnSchool of Information Engineering，Tongmyong University of Information Technology535 Yongdang dong，Pusan 608 711，Korea |
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| 基金项目： | Grant(No.2 0 0 0 -2 -10 1-0 0 1-3 ) from the Basic Research Program of the Korea Science &Engineering Foundation |
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| 摘 要： | The MUSCL scheme for compressible gas dynamicsis studied in this paper. We propose a new type of Euleri-an MUSCL scheme, which evaluates the intercell flux athalf time step. The intercell flux is comptuted from char-acteristic equations with the data which traced backthrough the approximatecharacteristic from the edge athalf time step. The data is classified in several differenttypes, depending on the characteristic directions of data.We also present a general procedure of oscillation-fre…
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NEW APPROACHES OF MUSCL SCHEMES FOR COMPRESSIBLE FLUIDS |
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| Sung Ik SohnSchool of Information Engineering,Tongmyong University of Information Technology Yongdang dong,Pusan ,Korea.NEW APPROACHES OF MUSCL SCHEMES FOR COMPRESSIBLE FLUIDS[J].Transactions of Nanjing University of Aeronautics & Astronautics,2001,18(Z1). |
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| Authors: | Sung Ik Sohn |
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| Institution: | School of Information Engineering,Tongmyong University of Information Technology 535 Yongdang-dong, Pusan 608-711, Korea |
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| Abstract: | The MUSCL scheme for compressible gas dynamics is studied in this paper. We propose a new type of Eulerian MUSCL scheme, which evaluates the intercell flux at half time step. The intercell flux is comptuted from characteristic equations with the data which traced back through the approximate characteristic from the edge at half time step. The data is classified in several different types, depending on the characteristic directions of data. We also present a general procedure of oscillation free algorithm for the MUSCL scheme. This procedure provides a class of limiters which includes the existing limiter. The new MUSCL scheme and the oscillation free algorithm are validated through simulations for test problems. |
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| Keywords: | MUSCL oscillation free TVD conservation laws |
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