CFD理论黏性流场中三维振动水翼的非定常水动力性能(英文)

查看全文 作　　者：Nazir [1,2]Zulfiqar;[1]苏玉民;[1]王兆立

机构地区：[1]State Key Laboratory of Autonomous Underwater Vehicle,Harbin Engineering University;[2]PN Dockyard,West Wharf Road,Karachi 74000,Pakistan

出　　处：《Journal of Marine Science and Application》索引2010年第9卷第3期,共6页

基　　金：Supported by the National Natural Science Foundation of China under Grant No.50879014 摘　　要：The motion of the fins and control surfaces of underwater vehicles in a fluid is an interesting and challenging research subject.Typically the effect of fin oscillations on the fluid flow around such a body is highly unsteady, generating vortices and requiring detailed analysis of fluid-structure interactions.An understanding of the complexities of such flows is of interest to engineers developing vehicles capable of high dynamic performance in their propulsion and maneuvering.In the present study, a CFD based RANS simulation of a 3-D fin body moving in a viscous fluid was developed.It investigated hydrodynamic performance by evaluating the hydrodynamic coefficients (lift, drag and moment) at two different oscillating frequencies.A parametric analysis of the factors that affect the hydrodynamic performance of the fin body was done, along with a comparison of results from experiments.The results of the simulation were found in close agreement with experimental results and this validated the simulation as an effective tool for evaluation of the unsteady hydrodynamic coefficients of 3-D fins.This work can be further be used for analysis of the stability and maneuverability of fin actuated underwater vehicles. 关键词：水动力系数粘性流体非定常 CFD 三维流体结构相互作用水翼动力性能参数

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CFD理论黏性流场中三维振动水翼的非定常水动力性能(英文)

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