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| 封闭容器中二维自然对流直接数值模拟的一个并行算法 | |
| 引用本文： | 郭照立,王能超,施保昌. 封闭容器中二维自然对流直接数值模拟的一个并行算法[J]. 应用数学, 2000, 13(3): 40-45 |
| 作者姓名： | 郭照立 王能超 施保昌 |
| 作者单位： | 1. 华中理工大学燃烧煤国家重点实验室,武汉,430074 2. 华中理工大学并行计算研究所,武汉,430074 |
| 摘 要： | 本文对具有不同温度竖壁的封闭容器中二维自然对流问题进行了直接数值模拟，控制方程在非均匀网络上使用空间二阶精度和时间一阶精度进行离散，程序是在国家高性能计算中心（武汉）的并行计算机“曙光１０００Ａ”上实现的，使用４个结点，获得的加速比和效率分别约为２．８９和０．７２。 |
| 关 键 词： | 直接数值模拟 自然对流 并行计算 封闭客器 |
A Parallel Algorithm for Direct Numerical Simulation of Two-dimensional Natural Convection in an Enclosed Cavity |
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| Guo Zhaoli,Wang Nengchao,Shi Baochang. A Parallel Algorithm for Direct Numerical Simulation of Two-dimensional Natural Convection in an Enclosed Cavity[J]. Mathematica Applicata, 2000, 13(3): 40-45 | |
| Authors: | Guo Zhaoli Wang Nengchao Shi Baochang |
| Abstract: | Direct numerical simulation is performed fo r two-dimensional natral convection flow in an enclosed cavity with differentia lly heated vertical walls. The governing equations under Boussinesq approximatio n are discretized by finite-difference method with second-order spatial accura cy and first-order time accuracy on a non-uniform mesh. The procedure was run on the parallel computer "DAWN1000A" at the National High Performance Computin g Center (Wuhan). With 4 nodes, the achieved speedup and efficiency are about 2. 89 and 0.72, respectively. |
| Keywords: | Direct numerical simulation Natural convection Parallel computation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |