| 二维对流扩散方程的一种离散与加速方法 |
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| 引用本文： | 贾力 孙金栋. 二维对流扩散方程的一种离散与加速方法[J]. 北京建筑工程学院学报, 2000, 16(3): 1-5 |
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| 作者姓名： | 贾力 孙金栋 |
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| 作者单位： | Department of Urban Construction Engineering，Beijing 100044 |
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| 摘 要： | 本文针对二维自然对流换热的控制方程的数值求解 ,利用交替方向隐式格式 ,改善数值方法的收敛性。为提高计算的速度 ,将稳态的椭圆型方程改写成非稳态的抛物型方程 ,通过时间推进得到稳态数值 ,避免了费时的迭代计算 ,明显提高数值计算的收敛速度。
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| 关 键 词： | 数值传热 对流扩散 收敛 速度 |
A Discrete and Accelerative Method for Two Dimersional Convection-Diffusion Equation |
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| Jia Li Sun Jindong. A Discrete and Accelerative Method for Two Dimersional Convection-Diffusion Equation[J]. Journal of Beijing Institute of Civil Engineering and Architecture, 2000, 16(3): 1-5 |
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| Authors: | Jia Li Sun Jindong |
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| Abstract: | The alternative direction illegible method is used in solving two-dimensional convection-diffusion equation for natural convection in cavity, and the convergence is improved. By changing steady equation into unsteady form, the solving process is accelerated, so same program can be used for momentum, energy and vorticity-stream function. |
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| Keywords: | numerical heat transfer convection diffusion convergence velocity |
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