| Citation: | CHENG Fei, SUN Shu, XIE Maixiang, et al. Method of improving sand separation performance of particle separator based on local jet[J]. Journal of Aerospace Power, 2023, 38（6）：1414-1422 doi: 10.13224/j.cnki.jasp.20210549
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In view of the problem that the inertial particle separator has low separation efficiency of sands with small diameter sand, a method was proposed to improve the small diameter sand separation efficiency by introducing local jet to form pneumatic bulge, and the effectiveness of the method was verified by simulation. Results showed that, the formation of pneumatic bulge can significantly improve the small diameter sand separation efficiency, and the separation efficiency of AC sands can be increased by 3.6%, or up to 7%, under the premise that the total pressure recovery at the outlet was no more than 0.5%; the introduction of jet can effectively improve the separation efficiency of sands with diameter of 9 μm and below, and the smaller diameter indicated the lower lifting effect. For sands with diameter of 9 μm, the separation efficiency can be increased to 100%; the injection position of the jet should be set on the wall surface of the centrosome bulge, and within a certain range, the greater angle between the jet and incoming flow and the greater jet pressure indicated the higher improvement effect on the small diameter sand separation efficiency.
| [1] |
HAMED A,TABAKOFF W C,WENGLARZ R V. Erosion and deposition in turbomachinery[J]. Journal of Propulsion and Power,2006,22(2): 350-360. doi: 10.2514/1.18462
|
| [2] |
邓瑛, 闫晓军, 聂景旭. 粒子分离器叶片涂层冲蚀磨损的数值模拟[J]. 航空动力学报, 2007, 22(12): 2089-2093.
DENG Ying, YAN Xiaojun, NIE Jingxun. Numerical simulation of erosion and abrasion of separator blade coating[J]. Journal of Aerospace Power, 2007, 22(12): 2089-2093. (in Chinese)
|
| [3] |
FILIPPONE A,BOJDO N. Turboshaft engine air particle separation[J]. Progress in Aerospace Sciences,2010,46(5/6): 224-245.
|
| [4] |
ABAKOFF W, HAMED A. Installed engine performance in dust-laden atmosphere[R]. AIAA 84-2488, 1984.
|
| [5] |
DUFFY R J, SHATTUCK B F. Integral engine inlet particle separator: Volume 1 technology program[R]. USAAMPDL-TR-75-31A, 1975.
|
| [6] |
STIEFEL W. Environmental icing test of T800 helicopter engine with integral inlet particle separator[R]. AIAA 89-2324, 1989.
|
| [7] |
JONES M , MORGAN S. Evaluation of the installed performance of the RTM322 in EH101[R]. AIAA 94-2673, 1994.
|
| [8] |
TASLIM M E,SPRING S. A numerical study of sand particle distribution, density, and shape effects on the scavenge efficiency of engine inlet particle separator systems[J]. Journal of the American Helicopter Society,2010,55(2): 022006.1-022006.10.
|
| [9] |
吴恒刚, 王锁芳. 整体式粒子分离器数值模拟[J]. 航空动力学报, 2007, 28(5): 1073-1079.
WU Henggang, WANG Suofang. Numerical simulation of inertial particle separator[J]. Journal of Aerospace Power, 2007, 28(5): 1073-1079. (in Chinese)
|
| [10] |
凌棫, 谭慧俊, 陈昊 , 等. 带柔性可变形鼓包的粒子分离器的工作特性研究 [R]. 北京: 中国力学大会暨庆祝中国力学学会成立六十周年大会, 2017.
LING Yu, TAN Huijun, CHEN Hao, et al. Research on the working characteristics of particle separator with flexible deformable drum[R]. Beijing: Chinese Mechanics Congress and Celebrating the 60th Anniversary of the Establishment of Chinese Mechanics Society Conference, 2017. (in Chinese)
|
| [11] |
HAMED A. Particle dynamics of inlet flowfields with swirling vanes[J]. Journal of Aircraft,1971,19(9): 707-712.
|
| [12] |
袁永青, 谭慧俊, 陈昊. 采用非均匀反弹特性壁面的粒子分离器研究[J]. 航空动力学报, 2018, 33(1)108-115
YUAN Yongqing, TAN Huijun, CHEN hao. Investigation of inertial particle separator with nonuniform surface materials[J]. Journal of Aerospace Power, 2018, 33(1): 108-115. (in Chinese)
|
| [13] |
DOMINIC B,ERIC L. Efficiency of an inertial particle separator[J]. Journal of Propulsion and Power,2015,31(5): 997-1002.
|
| [14] |
凌棫. 一种柔性可变形粒子分离器的设计、分析与初步实验[D]. 南京: 南京航空航天大学, 2018.
LING Yu. Design, analysis and preliminary experimental study of a deformable particle separator[D]. Nanjing: Nanjing University of Aeronautics and Astronautics, 2018. (in Chinese)
|
| [15] |
THOMAS M, DIONNE P. Turbine inlet protection system concept design using CFD technology[R]. AIAA 94-2813, 1994.
|
| [16] |
ANDREW S. Shifting sands: using image analysis and laser technology to study coastal sand dispersal[EB/OL]. [2021-03-18]. http://www.dipa2000.com/pdfs/ shifting-sands.pdf.
|
| [17] |
SOO S L. Fluid dynamics of multiphase systems[M]. Boston, US: Ginn and Ccompany, 1967.
|
| [18] |
WAKEMAN T, TABAKOFF W. Measured particle rebound characteristics useful for erosion prediction[R]. ASME Paper 1982-GT-0095, 1982.
|
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