Improved LS Method for Capturing Compressible Fluid with Multi-Interface Interactions
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摘要: 在普通Level Set（LS）方法基础上，给出了一种捕捉多重交汇界面的改进型LS方法，该方法能够大大减小多重交汇界面之间因光滑而产生的空穴区域，而不影响多重交汇以外区域的界面位置。同时对改进算法进行了测试，并与可压缩流体耦合，给出了多介质流体多重交汇界面的计算结果。Abstract: Based on the general LS method, an improved LS method for capturing compressible fluid with multi-interface interactions is given. This method can decrease the void region near the multi-interactions point, but not change the others. Both the LS equations capturing the material interface quality and the Eulerian conservative equations are solved by using a high resolution unspliting finite volume scheme, and fifth order WENO scheme for re-initialization level set equations. Some examination and application examples in capturing conjunct multi-fluid interfaces cases are simulated.
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Key words:
- Level Set method /
- compressible multi-fluid /
- Euler interface capture
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