The invention provides a numerical forecasting method and system for bubble collapse peak pressure near a complex wall surface. The method comprises the following steps: S1, establishing a right-angle computational grid based on the position of an object surface; s2, initializing calculation parameters; the calculation parameters comprise flow field data, object plane data and unit types; s3, performing calculation based on the right-angle calculation grid and the calculation parameters; and S4, judging whether calculation is ended or not, if so, outputting a calculation result, and if not, executing the steps S2-S3. According to the method, a compressible multiphase flow control equation is solved by combining a right-angle grid based on a virtual unit method with an interface compression method; according to the method, time-consuming and labor-consuming structured and unstructured grid generation is not involved, only the sign distance function field needs to be generated at the initial calculation moment according to the object plane grid, object plane implicit expression is achieved, and the efficiency of compressible multiphase flow numerical simulation involving complex structures is greatly improved.
本发明提供了一种复杂壁面附近气泡溃灭峰值压力的数值预报方法及系统,包括步骤S1:基于物面所处位置建立直角计算网格;步骤S2:初始化计算参数;所述计算参数包括流场数据、物面数据和单元类型;步骤S3:基于直角计算网格和计算参数进行计算;步骤S4:判断是否结束计算,若是,则输出计算结果,否则执行步骤S2‑S3。本发明采用基于虚拟单元方法的直角网格结合界面压缩方法求解可压缩多相流控制方程;该方法不涉及耗时费力的结构化、非结构化网格生成,只需在初始计算时刻根据物面网格生成符号距离函数场,实现物面隐式表达,大幅提升了涉及复杂结构物的可压缩多相流数值模拟效率。
Numerical forecasting method and system for bubble collapse peak pressure near complex wall surface
复杂壁面附近气泡溃灭峰值压力的数值预报方法及系统
2024-07-30
Patent
Electronic Resource
Chinese
Collapse of a spheroidal cavitation bubble near a solid wall
Online Contents | 2016
|Collapse of a spheroidal cavitation bubble near a solid wall
Springer Verlag | 2016
|Numerical Solution on Spherical Vacuum Bubble Collapse Using MPS Method
Online Contents | 2010
|Criteria for Bubble Collapse in Finite Depth Liquid
British Library Online Contents | 2006
|