| 确定SIMPLE算法中压力松弛因子的自适应方法 |
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| 引用本文： | 马淼,李春光,景何仿. 确定SIMPLE算法中压力松弛因子的自适应方法[J]. 甘肃科学学报, 2011, 23(4): 102-105 |
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| 作者姓名： | 马淼 李春光 景何仿 |
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| 作者单位： | 北方民族大学数值计算与工程应用研究所,宁夏 银川,750021 |
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| 基金项目： | 国家自然科学基金项目(10961002); 宁夏自治区高校项目(2009JY002); 宁夏自然科学基金资助项目(NZ1057); 宁夏自治区研究生教育创新计划项目(A09009) |
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| 摘 要： | 压力松弛因子的选取是SIMPLE(Swrni-Implicit Method for Pressure-Linked Equations,SIMPLE)算法在数值求解流体流动及对流换热问题的难点之一.针对非稳态流动问题,提出了一种SIMPLE算法中压力松弛因子的自适应方法,有效地避免了松弛因子对计算结果的影响.通过对两...
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| 关 键 词： | SIMPLE算法 压力松弛因子 自适应 非稳态 |
The Adaptive Method for Fixing the Pressure Relaxation Factor of SIMPLE Algorithm |
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| MA Miao,LI Chun-guang,JING He-fang. The Adaptive Method for Fixing the Pressure Relaxation Factor of SIMPLE Algorithm[J]. Journal of Gansu Sciences, 2011, 23(4): 102-105 |
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| Authors: | MA Miao LI Chun-guang JING He-fang |
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| Affiliation: | MA Miao,LI Chun-guang,JING He-fang(Research Institute of Numerical Computation and Engineering Applications,North University for Nationalities,Yinchuan 750021,China) |
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| Abstract: | When the SIMPLE algorithm is used to solve the problem of fluid flow and heat convection numerically,one of the difficulties is how to choose the pressure relaxation factor.For the nonsteady flowing problem,this paper presents a method,which is the adaptive approach of stress relaxation factor of SIMPLE algorithm.It can effectively avoid the influence of the relaxation factor on the computed result.Two numerical examples,namely 2D lid-driven square cavity flow and sudden expansion pipe flow,are given and co... |
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| Keywords: | SIMPLE algorithm pressure relaxation factor adaptive method nonsteady state |
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