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出 处:《计算力学学报》2011年第1期108-112,共5页Chinese Journal of Computational Mechanics
基 金:陕西省重点实验室基金(2010JS078);陕西省教育厅基金(2010JK761);陕西省重点学科建设专项基金资助项目
摘 要:采用可压缩的两相流模型,辅以Realizable k-ε湍流模型来模拟锥阀附近的水流水力特性,对于自由水面的处理采用了VOF法。通过对计算的压力场以及流线的分析,指出锥阀在水力消能中的作用。数值模拟结果与试验资料的比较分析表明两者吻合较好,从而验证了该模型在锥阀湍流模拟中的可靠性。In this paper,a numerical two-phase flow model combining with the Realizable k-ε turbulent model for compressible viscous fluid was presented for the simulation of the flow around the fixed-cone valve.The equations were solved with the finite volume method.The free fluid surface was simulated by the VOF method.The function of the fixed-cone valve for energy dissipating was pointed out by analyzing the computed pressure field,velocity field and streamlines distribution.Compared with the experimental data,the simulating results show that the proposed model is reliable and can be applied to the numerical simulation of turbulence flow around the fixed-cone valve.
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