| 利用算子分裂迎风均衡格式解对流为主溶质运移问题 |
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| 引用本文： | 赵全升,刘贯群,彭泽洲,牟晓燕,聂晶.利用算子分裂迎风均衡格式解对流为主溶质运移问题[J].吉林大学学报(地球科学版),2004,34(1):97-101. |
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| 作者姓名： | 赵全升 刘贯群 彭泽洲 牟晓燕 聂晶 |
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| 作者单位： | 青岛大学,环境科学与工程系,山东,青岛,266071;中国海洋大学,环境科学与工程学院,山东,青岛,266003;吉林大学,地球探测科学与技术学院,吉林,长春,130026 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 水污染模拟问题是水流问题与溶质运移问题的耦合问题.各种常见的数值解法在以对流为主溶质运移问题的求解中都会遇到困难,如用有限单元法或有限差分法时,会产生数值弥散与过量这两类误差.引入算子分裂迎风均衡格式法求解对流为主的水污染模拟问题,较好地克服了数值弥散和数值解出现振荡问题,该格式具有良好的稳定性、单调性及守恒性特点.
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| 关 键 词： | 对流为主 数值弥散 算子分裂迎风均衡格式 |
| 文章编号： | 1671-5888(2004)01-0097-05 |
An operator split upwind equalization scheme technique for convection dominated transport problems |
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| ZHAO Quan-sheng.An operator split upwind equalization scheme technique for convection dominated transport problems[J].Journal of Jilin Unviersity:Earth Science Edition,2004,34(1):97-101. |
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| Authors: | ZHAO Quan-sheng |
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| Institution: | ZHAO Quan-sheng~ |
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| Abstract: | The authors use an operator split upwind equalization scheme for overcoming the numerical dispersion and oscillation problems appeared in water pollution simulations problems where the convection is dominated. This scheme has a good stability, monotonic and conservation property. The results show that the scheme can eliminate the numerical dispersion and excessive errors in the finite element and finite difference solutes. |
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| Keywords: | convection dominated numerical dispersion operator split upwind equalization scheme |
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