| 安全阀升力系数试验研究和数值模拟 |
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| 引用本文： | 骆辉,于新海,王正东.安全阀升力系数试验研究和数值模拟[J].中国科技论文在线,2008(8):587-591. |
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| 作者姓名： | 骆辉 于新海 王正东 |
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| 作者单位： | 华东理工大学机械与动力工程学院、承压系统安全科学教育部重点实验室,上海200237 |
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| 基金项目： | 国家自然科学基金项目（20606011）; 上海重点学科建设项目（B503） |
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| 摘 要： | 通过建立安全阀升力系数的测量装置,研究了安全阀开启高度对升力系数的影响。基于安全阀压力释放原理,构建安全阀数值模拟的三维CFD模型,计算了安全阀内部的压力场和速度场分布。计算与实验结果相比较表明,所建立的CFD模型可对安全阀排放过程进行定量分析,并可系统研究安全阀主要结构参数对安全阀升力系数的影响,优化安全阀的设计。
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| 关 键 词： | 流体机械及工程 安全阀 升力系数 数值模拟 设计优化 |
Testing and simulation of lifting coefficients for safety valves |
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| LUO Hui,YU Xinhai,WANG Zhengdong.Testing and simulation of lifting coefficients for safety valves[J].Sciencepaper Online,2008(8):587-591. |
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| Authors: | LUO Hui YU Xinhai WANG Zhengdong |
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| Institution: | (School of Mechanical and Power Engineering, East China University of Science and Technology, The Key Laboratory of Safety Science of Pressurized System, Ministry of Education, Shanghai 200237) |
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| Abstract: | A testing system was established for safety valves to investigate the effects of lift height on the lifting coefficient. Based on the principle of pressure relief for a safety valve, a CFD model was introduced to calculate the velocity and pressure distributions in the interior of safety valves. Compared with the testing results, it is shown that the established model can be used to analyze the performance of safety valves quantitatively. It is also shown that a design optimization can be carried out with the study on the effects of structural parameters on the lifting coefficient for safety valves. |
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| Keywords: | fluid machinery and engineering safety valve lifting coefficient numerical simulation design optimization |
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