文献类型：期刊文献

中文题名：双通道养殖池流态模拟及验证

英文题名：Numerical simulation and verification on flow-field distribution in 'Cornell-type' dual-drain culture tank

作者：俞国燕[1];魏武[1];王筱珍[1];何真[1];鄢奉林[1]

机构：[1]广东海洋大学工程学院,广东湛江524088

年份：2012

卷号：39

期号：6

起止页码：10

中文期刊名：渔业现代化

外文期刊名：Fishery Modernization

收录：CSTPCD、、北大核心2011、北大核心

基金：广东省科技计划项目(2011B031200007;2010B020314005;2012B010300023;2011B020307007)

语种：中文

中文关键词：养殖池;数值模拟;CFD;k-ε模型;RNGk-ε模型

外文关键词：culture tank; numerical simulation; Computational Fluid Dynamics; k -ε model; RNG k - model

中文摘要：养殖池是循环水养殖中的关键设施,养殖池内水体的流态则是研究养殖池两相流的基础,并直接决定了养殖池的性能优劣。借助计算流体动力学软件包Fluent,采用标准模型和RNG模型分别对Cornell-type双通道养殖池进行数值模拟,得到养殖池内水体流场的速度分布。模拟结果表明,水体回转速度大小与养殖池中心的径向距离呈线性增长关系,池中心处速度最小,越远离池中心回转速度越大,靠近池壁处速度达到最大;同时通过实验数据对模拟结果进行了验证,对比结果分析表明,RNG模型比标准模型模拟效果相对较好,模拟结果也基本符合Cornell-type双通道养殖池的运行规律,这为养殖池的优化设计及结构改进提供了新的研究方法和手段。

外文摘要：Cuhure tank is the critical equipment in the Recirculating aquaculture system （RAS）, and as the basis for further research on two-phase flow, flow-field distribution in culture tank determines performance of culture tank. With the help of computational fluid dynamics （CFD） software, the flow-field distribution in the culture tank was simulated and verified by using the standard k -ε model and RNG k -ε model, and get the velocity distribution of the flow field in culture tank . The results show that these velocities increased nearly linearly with radial distance from the tank center. Finally, by analyzed the simulation results and experimental datum, found that RNG k - ε model is better than the standard k - ε model on simulation results, and the simulation results are basically in agreement with the tank ＇s operation law, numerical simulation has provided a new research method and mean to optimal structure designing and improvement.