| 魏文礼,李超.锥阀附近水力特性的三维数值模拟研究[J].计算力学学报,2011,28(1):108~112 |
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| 锥阀附近水力特性的三维数值模拟研究 |
| 3D numerical simulation of hydraulic characteristics around fixed-cone valve |
| 投稿时间：2009-02-26 修订日期：2009-12-01 |
| DOI：10.7511/jslx201101020 |
| 中文关键词: 锥阀 数值模拟 消能 湍流 |
| 英文关键词:fixed-cone valve numerical simulation energy dissipating turbulent flow |
| 基金项目:陕西省重点实验室基金(2010JS078);陕西省教育厅基金(2010JK761)和陕西省重点学科建设专项基金资助项目. |
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| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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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