双流体模型在高浓度含沙水流模拟中的应用

doi:10.3969/j.issn.1007-2861.2015.01.007

上海大学学报(自然科学版) ›› 2016, Vol. 22 ›› Issue (6): 753-762.doi: 10.3969/j.issn.1007-2861.2015.01.007

双流体模型在高浓度含沙水流模拟中的应用

梁成鹏, 陈红勋, 钱涛

上海大学上海市应用数学和力学研究所, 上海 200072

收稿日期:2015-03-18 出版日期:2016-12-30 发布日期:2016-12-30
通讯作者: 陈红勋(1962—), 男, 研究员, 博士生导师, 研究方向为水力机械、水动力学. E-mail: chenhx@shu.edu.cn
作者简介:陈红勋(1962—), 男, 研究员, 博士生导师, 研究方向为水力机械、水动力学. E-mail: chenhx@shu.edu.cn

Simulation of slurry flow with high sediment concentration based on two-fluid model

LIANG Chengpeng, CHEN Hongxun, QIAN Tao

Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China

Received:2015-03-18 Online:2016-12-30 Published:2016-12-30

摘要/Abstract

摘要：

在水利水电工程中, 泥沙经常会带来负面影响, 需采用合适的研究方法来分析泥沙运动规律. 针对高浓度水沙流动的特殊性, 选择双流体模型统一描述悬移质和推移质泥沙的运动. 该模型不仅考虑了水沙两相之间的相互作用, 同时考虑了颗粒之间的相互作用及两相体积分数的脉动效应. 以Coleman 实验结果为参考, 验证了模型的可靠性. 最后使用模型预测了某引水式电站沉沙池泥沙的沉降情况.

关键词: 沉沙池, 数值模拟 , 双流体模型 , 高浓度

Abstract:

Since sediment usually has a negative effect on hydropower project, it is necessary to develop appropriate methods to analyze sediment transport. Due to complexity of high concentration granular flow, a three dimensional two-fluid model was proposed to study slurry flows of both suspended load and traction load. The model took into account interaction between particles and water, as well as inter-particle collision and fluctuation of the two phase volume fraction. Numerical simulation of an open-channel sediment experiment of Coleman was used to validate the two-fluid model. Based on the model validation, the deposition effect of a specific desander was analyzed.

Key words: desander, numerical simulation , two-fluid model , high concentration

梁成鹏, 陈红勋, 钱涛. 双流体模型在高浓度含沙水流模拟中的应用[J]. 上海大学学报(自然科学版), 2016, 22(6): 753-762.

LIANG Chengpeng, CHEN Hongxun, QIAN Tao. Simulation of slurry flow with high sediment concentration based on two-fluid model[J]. Journal of Shanghai University（Natural Science Edition）, 2016, 22(6): 753-762.

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双流体模型在高浓度含沙水流模拟中的应用

Simulation of slurry flow with high sediment concentration based on two-fluid model

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