Numerical Simulation on Flow Characteristics of the Fluid around Elliptic Bundles
In this paper, a numerical simulation of the flow around elliptic bundles arranging in tine, was performed by the commercial software FLUENT 6.0, For the numerical simulation, the standard κ-ε turbulence model with modified parameter κ andε was employed and solved using the software.The influence of lateral pitch and total rows of elliptic bundles on flow resistance characteristics was discussed. The obtained results show that when Reynolds numbers (Re) at 18000～36000, the resistance coefficients Eu (Average Euler numbers) decrease with Re increasing, En is higher in long-pitch bundle than those in short-pitch one. Besides, the flow resistance decreases rapidly with the increasing of tube bundle rows, however, when the row numbers amount to 8 or more, the Eu doesnt change any more.The present works have significance for designing the arranging-tube system in heat transfer exchanger or any energy exchanging equipments to minimize the energy loss.
numerical simulation elliptic bundles flow resistance κ-εmodel
Zhang Heping Fan Qingzhu Liu Jie
Beijing Grandsun Company, Zhongguancun East Road, Haidian District, Beijing, 100083, China Department of Mechanical Engineering, Huaihai Institute of Technology, Cangwu Road. Lian yungang, Ji
国际会议
北戴河
英文
446-449
2007-06-06（万方平台首次上网日期，不代表论文的发表时间）