中文摘要：

激波与颗粒的相互作用广泛存在于超音速两相流中,具有十分重要的研究意义和价值。本文将内嵌边界方法与高精度激波捕捉格式WENO结合,模拟了激波强度Ms为2.81和1.3的激波与圆柱相互作用的过程。计算结果与文献值吻合较好,验证了本文算法的准确性。通过将上述两个案例对比,发现激波强度对于流场结构有十分重要的影响。除此之外,本文还发现圆柱表面受到的压力不稳定,其最大值出现在入射激波到达圆柱赤道之前,数值要高出稳态值很多倍。

英文摘要：

Interaction between shock and particle is a common phenomenon in supersonic multiphase flow, which is of great importance. In the paper, immersed boundary method combined with high-order WENO scheme is adopted to simulate the process of shock/cylinder interaction. Two cases with different shock strengths are studied. One case is with Ms=1.3, while the other is with Ms=2.81. The results agree well with the literatures, which verifies the developed solver. Through comparisons for the different two cases, we find that shock strength is an important factor that influences the flow field. Furthermore, it is found that the pressure loaded on the cylinder is unstable. Its peak appears before the incident shock approaches the equator of the cylinder, and the value is much higher than the steady case.