CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2010, Vol. 27 ›› Issue (5): 641-648.
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YONG Heng1, LIAN Zhiqiang2, ZENG Qinghong1, YUAN Guoxing1, WANG Zheng1
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Abstract: An integrated gradient total symmetry-preserving(IGTSP) scheme for momentum equations of Lagrangian hydrodynamics in cylindrical coordinates is presented.The scheme inherits advantages of both IGT and IGA schemes,that is,the scheme not only overcomes nonsymmetry of the IGT scheme but also has a momentum conservation error of order O(h),one order higher than that of IGA scheme.A number of numerical examples are tested to demonstrate advantages of IGTSP scheme.
Key words: spherical symmetry, momentum conservation, integrated gradients method, cylindrical coordinate system
CLC Number:
O24
YONG Heng, LIAN Zhiqiang, ZENG Qinghong, YUAN Guoxing, WANG Zheng. A Integrated Gradient Scheme for Preservation of Symmetry[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2010, 27(5): 641-648.
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URL: http://www.cjcp.org.cn/EN/
http://www.cjcp.org.cn/EN/Y2010/V27/I5/641
