Boundary and interface conditions are derived for high-order finite difference methods applied to multidimensional linear problems in curvilinear coordinates. Difficulties presented by the combination of multiple dimensions and varying coefficients are analyzed. In particular, problems related to nondiagonal norms, a varying Jacobian, and varying and vanishing wave speeds are considered. The boundary and interface conditions lead to conservative schemes and strict and strong stability provided that certain metric conditions are met. (C) 2001 Academic Press.
机构:
Nanjing Univ, Dept Math, Nanjing 210093, Peoples R ChinaNanjing Univ, Dept Math, Nanjing 210093, Peoples R China
Xiao, Yuanming
Xu, Jinchao
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Penn State Univ, Dept Math, State Coll, PA USANanjing Univ, Dept Math, Nanjing 210093, Peoples R China
Xu, Jinchao
Wang, Fei
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Xi An Jiao Tong Univ, Sch Math & Stat, Xian 710049, Peoples R China
Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R ChinaNanjing Univ, Dept Math, Nanjing 210093, Peoples R China
机构:
Department of Mathematical Sciences, Rensselaer Polytechnic Institute, TroyDepartment of Mathematical Sciences, Rensselaer Polytechnic Institute, Troy
Fatkullin I.
Hesthaven J.S.
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Division of Applied Mathematics, Brown University, ProvidenceDepartment of Mathematical Sciences, Rensselaer Polytechnic Institute, Troy