| 旋流自吸泵导壁结构对性能的影响 |
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| 引用本文： | 王春林,梁俊,易同祥,刘红光,吴志旺.旋流自吸泵导壁结构对性能的影响[J].排灌机械,2009,27(6):388-392. |
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| 作者姓名： | 王春林 梁俊 易同祥 刘红光 吴志旺 |
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| 作者单位： | 江苏大学,能源与动力工程学院,江苏,镇江,212013 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 运用商用CFD软件FLUENT,对旋流自吸泵内部三维流场进行了数值模拟.计算采用标准k-ε模型,选择多重参考系模型将叶轮流场与蜗壳流场进行动静耦合,得到导壁附近的压力场及湍动能流场的分布规律.分析了导壁包角结构对流场的影响,建立了性能预测模型,通过对导壁包角分别为55,°65,°70°这3种结构尺寸模型的性能预测对比,探讨了导壁结构对于旋流自吸泵性能的影响.分析可知导壁结构对性能有一定影响,65°包角为最佳导壁结构.通过预测与试验结果的对比,二者结果较为一致.
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| 关 键 词： | 旋流自吸泵 数值模拟 导壁 k-ε模型 |
Study of guide wall structure influence on performance of rotational flow self-priming pump |
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| Wang Chunlin,Liang Jun,Yi Tongxiang,Liu Hongguang,Wu Zhiwang.Study of guide wall structure influence on performance of rotational flow self-priming pump[J].Drainage and Irrigation Machinery,2009,27(6):388-392. |
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| Authors: | Wang Chunlin Liang Jun Yi Tongxiang Liu Hongguang Wu Zhiwang |
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| Institution: | (School of Energ).r and Power Engineering, Jiangsa University, Zhenjiang, Jiangsu 212013, China) |
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| Abstract: | The internal 3D flow field of rotational flow self-priming pump was simulated numerically by using commercial CFD software FLUENT. Standard k -ε model was adopted in calculation, and reference frame model was chosen to couple the static-dynamic flow field of impeller and volute. The flow fields of pressure and turbulent kinetic energy, near guide wall were obtained, and guide wall influence on flow field was analyzed. A performance prediction model was established. The influence of guide wall struc- ture on performance was discussed by comparing the prediction performances of three models with diffe- rent guide wall wrap angles of 55°,65°,70°. It is shown that the guide wall structure has some influence on the performance and wrap angles of 65° is the optimal structure from three guide wall structures. The predicted results are also in agreement with experimental results. |
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| Keywords: | rotational flow self-priming pump numerical simulation guide wall k-ε model |
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