| 诱导轮形状对汽蚀特性的影响 |
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| 引用本文： | 黄建德,谷传纲.诱导轮形状对汽蚀特性的影响[J].航空动力学报,2000,15(2):142-146. |
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| 作者姓名： | 黄建德 谷传纲 |
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| 作者单位： | 上海交通大学,流体机械及动力工程系,振动冲击噪声国家重点实验室,上海,200030 |
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| 基金项目： | 中国科学院资助项目，， |
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| 摘 要： | 作者通过对两个叶片的平板螺旋形诱导叶轮的汽蚀特性和叶轮内空泡发展进行了测试和可视化观察,发现随着吸入压力的降低,两个叶片上原来同样发展的空泡之间有时会失去平衡,出现一个叶片的空泡急剧缩小,而另一个叶片空泡随之增大,这种交错叶片空泡现象,并有可能导致扬程的急速下降.在此基础上,作者进一步对叶片数,叶片长度不同的4种诱导叶轮进行了测试,弄清了叶轮几何形状对上述现象发生和汽蚀性能的影响,并对其原因作了初步的探讨.
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| 关 键 词： | 诱导轮 形状 汽蚀 |
| 收稿时间： | 4/8/1999 12:00:00 AM |
| 修稿时间： | 1999-04-08 |
The Effect of Inducer Shape on the Alternate Blade Cavitation |
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| Huang Jiande and Gu Chuangang.The Effect of Inducer Shape on the Alternate Blade Cavitation[J].Journal of Aerospace Power,2000,15(2):142-146. |
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| Authors: | Huang Jiande and Gu Chuangang |
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| Institution: | Department of Fluid Machinery and Power Engineering,Shanghai Jiaotong University. National Key Laboratory for Vibration Shock and Noise,Shanghai 200030,China;Department of Fluid Machinery and Power Engineering,Shanghai Jiaotong University. National Key Laboratory for Vibration Shock and Noise,Shanghai 200030,China |
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| Abstract: | Measurement and visualization of suction performance and cavitation development have been performed on a flat helical inducer with two blades.As the suction pressure is reduced,the balance of the cavity development on both blades may be destroyed.Alternate blade cavitation can occur,in which the cavity development evolves on one blade but weakens on the other.This makes the pump lift decrease quickly.Thus,the same investigation on four types of inducer impellers with different blade numbers and blade lengths have also been performed.The effects of the impeller geometrical parameters on the cavitation performance and occurrence of the alternate blade cavitation are found out and the mechanism is explored. |
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| Keywords: | inducer shapes cavitation effects |
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