【作者】 余俊； 汪俊； 王海坤； 潘建强；

【Author】 YU Jun;WANG Jun;WANG Hai-kun;PAN Jian-qiang;China Ship Scientific Research Center;

【机构】 中国船舶科学研究中心；

【摘要】 本文采用高精度激波捕捉格式与近似Riernann求解器处理气-液两相可压缩流体界面运动方程,构建了一套完整的数值模拟方法。并对计算模型的激波捕捉能力以及界面捕捉能力进行了初步考核,计算结果表明该模型能够有效的处理气-液两相界面问题。同时利用该模型对水下近壁面爆炸的局部空化问题进行了数值模拟,获得了空化区域的流场分布以及空化过程中的载荷特征。本文的计算方法能够为水下爆炸现象的深入研究提供技术支撑。更多还原

【Abstract】 A high-order accurate shock-capturing scheme and approximate Riemann solvers are used to capture gas-water two-phase compressible flow interface movement,which are constituted a high-order accurate simulation method.Our method is high-order accurate,shock-capturing and interface-capturing.These properties are verified by several cases.Lastly,these method is applied to simulation cavitation phenomenon on underwater explosion near the stiffed wall,and loading characteristics are gained near the cavitation area.Our method could support the base for the research of underwater explosion.更多还原