| 弯型截止阀流场的PIV显示和数值模拟 |
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| 引用本文： | 袁新明,贺治国,陈华,毛根海.弯型截止阀流场的PIV显示和数值模拟[J].水科学进展,2003,14(2):231-235. |
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| 作者姓名： | 袁新明 贺治国 陈华 毛根海 |
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| 作者单位： | 1.扬州大学水利与建筑工程学院, 江苏, 扬州, 225009; |
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| 基金项目： | 江苏省重点实验室-扬州大学水利动力工程实验室开放课题基金的资助项目(K99081)~~ |
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| 摘 要： | 为了解弯型进口截止阀的流场特性,用粒子成像流速仪(PIV)对弯型截止阀对称面模型进行了流场显示;此外,采用了RNGk ε紊流模型和贴体坐标对弯型进口和斜进口截止阀对称面流场进行了模拟。通过用粒子成像流速仪流场显示技术和数值计算,揭示了弯型进口和斜进口截止阀流场特性,数值计算的流态与实验结果也较为吻合。计算结果显示斜进口截止阀流态好于弯型进口截止阀的流态。
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| 关 键 词： | 弯型截止阀 流场显示 PIV RNGk-ε紊流模型 数值模拟 |
| 文章编号： | 1001-6791(2003)02-231-05 |
| 收稿时间： | 2002-01-11 |
| 修稿时间： | 2002年1月11日 |
Numerical simulation and flow field display by the PIV of curved cut-off valve |
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| YUAN Xin-ming,HE Zhi-guo,CHEN Hua,MAO Gen-hai.Numerical simulation and flow field display by the PIV of curved cut-off valve[J].Advances in Water Science,2003,14(2):231-235. |
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| Authors: | YUAN Xin-ming HE Zhi-guo CHEN Hua MAO Gen-hai |
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| Affiliation: | 1.Dept.of Hydraulic Engineering, Yangzhou University, Yangzhou 225009, China;2.Dept.of Civil Engineering, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | A Particle Image Velocimetry is used to display the flow field of curved inlet cut off valve in this paper.Meanwhile, the RNG k-ε turbulence model is applied to simulate the turbulent flows in the symmetrical planes of curved and inclined inlet cut off valves.The control equations are solved in a body-fitted corrdinate by finite volume method with a staggered grid system.The computed results of curved inlet cut of valve are well in agreement with the experimental data,show that of curved inlet cut-off valve.The calculat ion results also show that the RNG k-ε turbulence model can be used to simulate the separated turbulent flows with eddies. |
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| Keywords: | PIV |
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