Description of Complex and Sharp Interface during Shock Wave Interaction with Liquid Drop
Description of Complex and Sharp Interface during Shock Wave Interaction with Liquid Drop
复制标题
冲击波与液滴相互作用过程中复杂而尖锐的界面描述
DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
F. Xiao
中科院分区：
文献类型：
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作者：
T. Yabe;F. Xiao
提出了一种用密度函数处理尖锐间断的方法。在整个计算过程中，即使不连续表面发生很大程度的扭曲，密度函数的表面也会被捕获在网格单元内。这种描述是可能的CIP（插值传播）方法结合变量变换。该方法不仅适用于不可压缩流体，也适用于可压缩流体中尖锐边界的检测。采用同样步骤的低阶格式不能再现结果。该方案被应用到冲击波与液滴的相互作用。液体质量在0.15%的误差内守恒。
A method of treating a sharp discontinuity with a density function is proposed. The surface of the density function is captured within a grid cell throughout the calculation even when the discontinuity surface is largely distorted. This description is made possible by the CIP (cubic-interpolated propagation) method combined with variable transformation. This scheme can be used for detecting a sharp boundary in compressible fluid as well as incompressible fluid. Lower order schemes with the same procedure cannot reproduce the result. This scheme is applied to the interaction of a shock wave with a liquid drop. The liquid mass is conserved within an error of 0.15%.