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用紊流模型通过座标变换预测过坝水流流场 被引量:3
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作者 李治勤 陈刚 李建中 《水利学报》 EI CSCD 北大核心 1996年第8期25-32,共8页
本文通过求解边值问题的泊松方程生成适体座标系,把物理平面上复杂边界计算域转换为计算平面上规则的矩形域.在此矩形域内,采用SIMPLE算法对过坝水流流场进行计算,得到的流速分布规律与实测资料较为一致,紊动能及其耗散率分... 本文通过求解边值问题的泊松方程生成适体座标系,把物理平面上复杂边界计算域转换为计算平面上规则的矩形域.在此矩形域内,采用SIMPLE算法对过坝水流流场进行计算,得到的流速分布规律与实测资料较为一致,紊动能及其耗散率分布合理. 展开更多
关键词 紊流 座标变换 溢流坝 数值分析 离散化
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AN APPROACH TO THE STUDY OF TRANSVERSE MIXING IN NATURAL RIVERS 被引量:1
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作者 Zeng Ping Li Jian-chu Department of Civil Engineering,Dalian University of Technology,Dalian 116024,P.R.China 《Journal of Hydrodynamics》 SCIE EI CSCD 1993年第2期104-109,共6页
A numerical model of transverse mixing in natural rivers has been presented by using the body-fitted coordinate systems,which is capable of describing the complex flow and mixing characteristics of rivers.To study the... A numerical model of transverse mixing in natural rivers has been presented by using the body-fitted coordinate systems,which is capable of describing the complex flow and mixing characteristics of rivers.To study the validity and to illustrate the applicability of this model,field measurement date in the Gan River near Nanchang have been used to compare the numerical results. 展开更多
关键词 body-fitted coordinate systems transverse mixing natural rivers numerical model
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