纯对流流体数值仿真越界求解方法对比  

Method Comparison of Over-bound Problem of Pure Convection Flow Numerical Simulation

作　　者：王振业 李江飞[2] 陈鹏 冯亮 王剑 谢冬梅[2] 

机构地区：[1]中国石油天然气管道局管道工程有限公司,河北廊坊065000 [2]承德石油高等专科学校热能工程系,河北承德067000 [3]中国石油西南管道公司,四川成都610041

出　　处：《承德石油高等专科学校学报》2016年第2期33-35,50,共4页Journal of Chengde Petroleum College

基　　金：河北省科技支撑计划项目(采用电气液压调节的蒸汽透平机运行特性和节能分析):13211609

摘　　要：对于阶梯形标量场的纯对流传递,采用有限容积法离散控制方程,采用Gauss-seidel法进行迭代求解,采用延迟修正增加迭代过程的稳定性。通过不同格式离散对流项得到的计算结果可以看到:一阶迎风格式计算结果精度太低,中心差分格式的结果发生振荡,二阶迎风和QUICK格式精度较高,但会产生越界现象。高阶有界组合格式计算精度高,且具有有界性。For the pure convention of the step-shape scalar field,the finite volume method is adopted to disperse the governing equation,the Gauss-seidel is used for iteration to solve the equation and the delay correction is adopted to increase the stability of the iterative process. The calculation results show that： the accuracy of the upwind format calculation result of the first order is too low and the result of the central difference format vibrates. The accuracy of the upwind format calculation of the second order and the QUICK format calculation is high,but the cross-border phenomenon occurs. The higher-order bounded combination format has high accuracy with boundedness.

关 键 词：纯对流 高阶有界格式 数值仿真 有限容积法 离散 

分 类 号：O35[理学—流体力学]