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。
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.
出处
《北京建筑工程学院学报》
2000年第3期1-5,共5页
Journal of Beijing Institute of Civil Engineering and Architecture
关键词
数值传热
对流扩散
收敛
速度
numerical heat transfer
convection diffusion
convergence velocity
