LS Method in Body-Fitted Coordinate System for Multi-Dimensional Non-Ideal Detonation Propagation
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摘要: 研究了贴体坐标系中非理想爆轰波阵面传播计算的位标函数法，给出了稳定的ENO差分格式、边界条件处理和计算实例。此方法特别适用于计算曲面边界炸药中的非理想爆轰问题。Abstract: An algorithm in body-fitted coordinate system for multi-dimensional non-ideal detonation propagation is studied. Stable ENO difference scheme, the treatment of boundary conditions and numerical results are described. The algorithm is of special benefit for computing non-ideal detonation propagation in explosives with curve surfaces.
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Key words:
- non-ideal detonation /
- numerical modeling /
- LS method
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Aslam T D, Bdzil J B, Stewart D S. Level Set Methods Applied to Modeling Detonation Shock Dynamics [J]. J Comp Phys, 1996, 126: 390-409. Osher S, Sethian J A. Front Propagating with Curvature-Dependent Speed: Algorithms Based on Hamilton-Jacobi Formulations [J]. J Comp Phys, 1988, 79: 12-49. -
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