基于GTEA的CICSAM格式在两相自由面 流动问题中的实施和验证研究  

An Implementation and Validation of CICSAM Scheme for Two-phase Interfacial Flow Based on GTEA

作　　者：赵海洋 明平剑[1] 张文平[1] ZHAO Hai-yang;MING Ping-jian;ZHANG Wen-ping(College of Power and Energy Engineering,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]哈尔滨工程大学动力与能源工程学院,哈尔滨150001

出　　处：《船舶力学》2020年第6期727-739,共13页Journal of Ship Mechanics

基　　金：国家自然科学基金项目(51479038);中央高校基本科研业务费(HEUCF201711)。

摘　　要：本文将CICSAM(Compressive Interface Capturing Scheme for Arbitrary Meshes)格式与实验室自主研发的GTEA(Gen⁃eral Transport Equation Analyzer)求解器相结合用于求解两相自由面流动问题。Ubbink(1997)提出的CICSAM格式作为一种高精度VOF类方法,基于有限体积法思想对瞬态标量对流方程进行离散,是一种完全守恒格式。求解体积分数输运方程得到的更新的物质参数,如密度和粘度,被用于N-S方程求解中,以获得当前时刻的速度和压力场,从而实现了两者的耦合。通过典型算例的测试,并与相应的理论解或实验值对比,验证当前方法对模拟两相自由面流动问题具有可行性。The paper concerns coupling the CICSAM(Compressive Interface Capturing Scheme for Ar⁃bitrary Meshes)scheme with the in-house code GTEA(General Transport Equation Analyzer)solver to deal with the flow problems with free surface.As a high resolution VOF method,CICSAM scheme proposed by Ubbink(1997)has been used for the transient scalar convection equation on the basis of fi⁃nite volume discretization which is fully conservative.The updated physical parameters such as densi⁃ty and viscosity,obtained by solving the volume fraction transport equation,have been applied to the general N-S equations for new velocity and pressure field.Several typical tests are carried out to con⁃trast with the theoretical values or experimental data and to verify the feasibility of the coupling codes to be implemented on two-phase interfacial flow problems.

关 键 词：两相流 CICSAM 有限体积法 自由表面 非结构化网格 

分 类 号：O35[理学—流体力学]