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	建筑物绕流的非稳态数值模拟研究
	陈晓春 ; 周翔 ; 李宏军 ; 朱颖心 ; CHEN Xiao-chun ; ZHOU Xiang ; LI Hong-jun ; ZHU Ying-xin
	2010-05-14 ; 2010-05-14
关键词	建筑物绕流 数值模拟 RNG k-ε模型 非稳态雷诺平均方程数值模拟 flow around building numerical simulation RNG k-εmodel URANS TU831
其他题名	The Unsteady Numerical Simulation of Flow around Building
中文摘要	建筑物绕流是一种典型的钝体绕流形式,而钝体绕流通常具有非稳态流动特征,本文主要工作是对建筑物绕流的非稳态流场进行数值模拟研究。首先采用了RNG k-ε模型对方柱绕流进行非稳态数值模拟研究,通过与实验以及大涡模拟结果进行比较,发现RNG k-ε模型可以获得满意结果;接着又对一种典型的建筑物绕流形式进行数值模拟研究,分别采用了稳态和非稳态模拟方法,模拟结果表明了采用非稳态数值模拟方法可以获得与实验以及大涡模拟更为接近的结果。; Flow around building is a typical pattem of flow around bluff bodies and flow around bluff bodies often have unsteady flow character.The main work of this paper studies the unsteady flow around building by numerical simulation. First of all,the RNG k-εmodel is adopted to simulate the unsteady flow around square cylinder,research shows that the results of unsteady numerical simulation could effectively reflect the basic characteristics of flow and fits well with the experimental and LES simulation results.Then the steady and unsteady simulations are carried out respectively to study flow around building.Research of unsteady method shows that the results fits well with the experimental and LES simulation results.However,the results of steady numerical simulation were quite different from the experimental results.
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/33027]
专题	清华大学
推荐引用方式 GB/T 7714	陈晓春,周翔,李宏军,等. 建筑物绕流的非稳态数值模拟研究[J],2010, 2010.
APA	陈晓春.,周翔.,李宏军.,朱颖心.,CHEN Xiao-chun.,...&ZHU Ying-xin.(2010).建筑物绕流的非稳态数值模拟研究..
MLA	陈晓春,et al."建筑物绕流的非稳态数值模拟研究".(2010).

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