| 一种应用于可燃气云爆燃计算的改进SIMPLE算法 |
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| 引用本文： | 杨国刚,丁信伟,毕明树,ABUDULA Abuliti.一种应用于可燃气云爆燃计算的改进SIMPLE算法[J].大连理工大学学报,2004,44(6):789-792. |
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| 作者姓名： | 杨国刚 丁信伟 毕明树 ABUDULA Abuliti |
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| 作者单位： | 大连理工大学,化工学院,辽宁,大连,116012;弘前大学,理工学部,日本弘前,036-8561 |
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| 基金项目： | 国家自然科学基金资助项目(50076006)，国家教委博士学科点专项科研基金资助项目(2001041026). |
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| 摘 要： | 基于SIMPLE算法的压力校正思想，提出了一种新的改进算法．设计了先对温度进行假设，再对其迭代求解的计算流程，并从理想气体状态方程出发，推导出了密度校正方程，对半球形可燃气云爆燃进行了计算，得到了收敛性能良好的计算结果．该改进算法可以应用于可燃气云爆燃的计算中．
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| 关 键 词： | SIMPLE算法 可压缩流体 温度校正 密度校正 |
| 文章编号： | 1000-8608(2004)06-0789-04 |
An improved SIMPLE algorithm used in numerical simulation of flammable gas cloud deflagration |
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| YANG Guo-gang.An improved SIMPLE algorithm used in numerical simulation of flammable gas cloud deflagration[J].Journal of Dalian University of Technology,2004,44(6):789-792. |
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| Authors: | YANG Guo-gang |
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| Institution: | YANG Guo-gang~ |
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| Abstract: | Based on the pressure-correction principle of SIMPLE (semi-implicit method for pressure linked equations) algorithm, a new improved algorithm has been proposed. In the improved algorithm, temperature field was firstly assumed, and iteration-correction was used subsequently. In addition, a density corrective equation was applied at the base of state equation of perfect gas. By calculating semi-spherical flammable cloud deflagration, solutions with better convergence characteristics have been obtained. It is shown that the new algorithm can be used in the numerical computation of flammable gas cloud deflagration. |
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| Keywords: | SIMPLE algorithm compressible fluid temperature correction density correction |
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