On the Partially Cavitating Flow Around Two-Dimensional Hydrofoils
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摘要: 运用基于速度势的低阶边界积分方法研究了二维水翼的定常局部空化。通过迭代求解给定了空化数的空泡长度和空泡形状,运动学和动力学边界条件在迭代过程中满足;采用回射流模型和压力恢复闭合模型代替空泡后的高湍流度的二相尾流。计算结果和已发表的数值结果进行了比较。Abstract: The steady partially cavitating flow around two-dimensional hydrofoils was simulated numerically by the low-order potential-based boundary integration method.The caviy shape and length are determined for given cavitating numbers in the course of iteration by satisfying the kinematic and dynamic boundary conditions.The re-entrant jet model and the pressure-recovery close model are adopted to replace the high turbulent and two-phase wake forming behind the cavity.The results are compared with the other published numerical ones.
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[1] Pellone C, Rowe A. Effect of separation on partial cavitation[J]. Journal of Fluids Engineering,1988,110: 182-189. [2] Rowe A, Blottianx O. Aspects of modeling partially cavitating flow [J]. Journal of Ship Research,1993,37(1):34-48. [3] Peallat J M, Pellone C. Experimental validation of two-and three-dimensional numerical analysis of partially cavitating hydrofoils[J]. Journal of Ship Research,1996,40(3):211-223. [4] Uhlma J S. The surface singularity method applied to partially cavitating hydrofoils[J]. Journal of Ship Research,1987,31(2) :107-124. [5] Kinnas S A, Fine N E. Nonlinear analysis of the flow around partially or super-cavitating hydrofoil by a potential base panel method[A]. In: Boundary Integral Methods-Theory and Applications[C]. Proceedings of the IAB EM-90 Symposium, Roma, Italy, October 15-19,1990.Heidelberg: Springer-Verlag,1991,289-300. [6] Fine E, Kinnas S A. A boundary element method for the analysis of the flow around 3-D cavitating hydrofoils[J]. Journal of Ship Research,1993,37(3):213-224. [7] Kinnas S A, Fine N E. A numerical nonlinear analysis of the flow a round two-and three-dimensional partially cavitating hydrofoils[J]. Journal of Fluid Mechanics,1993,254:151-181. [8] Lee C S, Kim Y G, Lee J T. A potential-based panel method for the analysis of a two-dimensional super-or partially-cavitating hydrofoil[J]. Journal of Ship Research,1992,36(2):168-181. [9] Ghassemi H, Ikehata M, Yamasaki H. Verification of cavity model for the analysis of a partially cavitating two-dimensional hydrofoils[J]. J Kansai Soc N A, Japan,1997,(227):21-27. [10] de Lange D F. Observation and modelling of cloud formation behind a sheet cavity[D]. Netherlands: University of Twente,1996. [11] de Lange D F, de Bruin G J. Sheet cavitation and cloud cavitation, re-entrant jet and three-dimensionality[J]. Applied Science Research,1998,58:91-114. [12] Jie Dang, Gert Kuiper. Re-entrant jet modeling of partial cavity flow on two-dimensional hydrofoils[A]. In: Michel J M, Kato H Eds.Third International Symposium on Cavitation[C]. Grenoble, France,1998,233-242. [13] Shen Y T, Peteraon F B. Unsteady cavitation on an oscillating hydrofoil[A]. In: Proc 12th Symp, Naval Hydrod, Naval Studies Board, National Research Council[C]. Washington,DC,1978,363-384.
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