| 有间隙弯叶片近壁面静压分布对叶栅气动性能的影响 |
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| 引用本文： | 韩万今,黄洪雁,权生林,王仲奇. 有间隙弯叶片近壁面静压分布对叶栅气动性能的影响[J]. 工程热物理学报, 1998, 0(6) |
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| 作者姓名： | 韩万今 黄洪雁 权生林 王仲奇 |
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| 作者单位： | 哈尔滨工业大学!哈尔滨，150001，哈尔滨工业大学!哈尔滨，150001，哈尔滨工业大学!哈尔滨，150001，哈尔滨工业大学!哈尔滨，150001 |
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| 摘 要： | 对具有叶顶间隙的直叶栅、正弯叶栅和反弯叶棚的近壁画静压和出口流场进行了测量，实验结果发现：叶片正弯减小了叶顶中后部的横向压力梯度，削弱了泄漏流与端壁横流及其相互作用，使下游流动损失明显降低；叶片反弯也削弱了泄漏流动，但下游流动损失比其它两套叶栅大．
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| 关 键 词： | 端部间隙 弯叶栅 近壁面静压 实验研究 |
EFFECT OF STATIC PRESSURE DISTRIBUTION NEAR ENDWALL ON CASCADE PERFORMANCE IN CURVING CASCADES WITH TIP CLEARANCE |
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| HAN Wanjin,HUANG Hongyan,QUAN Shengling,WANG Zhongqi. EFFECT OF STATIC PRESSURE DISTRIBUTION NEAR ENDWALL ON CASCADE PERFORMANCE IN CURVING CASCADES WITH TIP CLEARANCE[J]. Journal of Engineering Thermophysics, 1998, 0(6) |
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| Authors: | HAN Wanjin HUANG Hongyan QUAN Shengling WANG Zhongqi |
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| Affiliation: | Harbin institute of Technology Harbin 150001 |
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| Abstract: | The quite detailed information about static pressure distribution near the surface ofconventional straight blade cascades, positively curved blade cascades, negatively curvedblade cascades, all with tip clearance, were obtained. The result show that: (a) bladepositive curving reduces the crosswise pressure gradient, thereby the leakage flow, the endwallcrosswise flow, and the interaction between them were weakened, flow losses downstream arecut down. (b) blade negative curving reduce the leakage flow, but total losses downstreamis the largest one among the three cascades. |
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| Keywords: | tip clearance curved blade static pressure near surface experimental study |
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