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| 直通篦齿蜂窝封严结构的风阻特性试验 | |
| 引用本文： | 纪国剑,吉洪湖,黄云霞,帅海山,陆海鹰,王海.直通篦齿蜂窝封严结构的风阻特性试验[J].航空动力学报,2011,26(12):2655-2660. |
| 作者姓名： | 纪国剑 吉洪湖 黄云霞 帅海山 陆海鹰 王海 |
| 作者单位： | 1. 南京航空航天大学能源与动力学院,南京210016／常州大学石油工程学院,江苏常州213016 2. 南京航空航天大学能源与动力学院,南京,210016 3. 中国航空工业集团公司沈阳发动机设计研究所,沈阳,110015 |
| 基金项目： | 江苏省高校自然科学基金(11KJB470001) |
| 摘 要： | 试验研究了直通直齿和直通斜齿与蜂窝衬套和光滑衬套4种组合的三齿两腔封严结构的风阻特性,得到了风阻特性随转速、压比、衬套和齿形结构的变化规律.结果表明：4种组合封严结构在低转速时风阻生热基本都可以忽略,转速在3 000r/min到6 000r/min之间变化时风阻生热引起的流体总温升随转速增大;采用光滑衬套时,泄漏流体流... |
| 关 键 词： | 直通篦齿 蜂窝衬套 风阻生热 总温 旋转 |
| 收稿时间： | 9/9/2011 12:00:00 AM |
| 修稿时间： | 2011/11/3 0:00:00 |
Experiment investigation of windage heating on straight-through labyrinth seals with honeycomb bush |
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| JI Guo-jian,JI Hong-hu,HUANG Yun-xi,SHUAI Hai-shan,LU Hai-ying and WANG Hai.Experiment investigation of windage heating on straight-through labyrinth seals with honeycomb bush[J].Journal of Aerospace Power,2011,26(12):2655-2660. | |
| Authors: | JI Guo-jian JI Hong-hu HUANG Yun-xi SHUAI Hai-shan LU Hai-ying and WANG Hai |
| Institution: | College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;School of Petroleum Engineering, Changzhou University, Changzhou Jiangsu 213016, China;College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;Shenyang Aeroengine Research Institute, Aviation Industry Corporation of China, Shenyang 110015, China;Shenyang Aeroengine Research Institute, Aviation Industry Corporation of China, Shenyang 110015, China |
| Abstract: | Experiment investigation of windage heat on straight tooth and slant tooth of labyrinth seals composed of three teeth and two cavities with honeycomb bush and smooth bush had been made to study the effect of rotating speed and the pressure ratio of inlet to outlet and structure of tooth and bush.The results show that the total temperature of leakage fluid caused by windage heat may be neglected at low rotor speed and is increased with the increasing rotation speed between 3000r/min and 6000r/min.The total temperature ratio of first tooth to all teeth is more than 50% with smooth bush and is only 20% with honeycomb bush under low pressure ratio and enhanced to 50% with the increase of the pressure ratio.The straight tooth show increased windage heat when compared to slant tooth with the same bush due to the larger extension length of seal surface curve. |
| Keywords: | labyrinth seal honeycomb bush windage heat total temperature rotation |
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