径向直叶片燃油汽心泵汽心形态数值模拟

王彬; 于定鹏; 叶志锋; 管华盛

doi:10.13224/j.cnki.jasp.2015.11.022

径向直叶片燃油汽心泵汽心形态数值模拟

doi: 10.13224/j.cnki.jasp.2015.11.022

南京航空航天大学能源与动力学院江苏省航空动力系统重点实验室, 南京 210016

基金项目:

国家自然科学基金青年基金(51205188)

详细信息

作者简介:
王彬(1978-),男,江苏兴化人,讲师、硕士生导师,博士,主要从事航空燃油控制系统与元件方面的研究。

中图分类号: V233.2
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出版历程
- 收稿日期: 2014-04-23
- 刊出日期: 2015-11-28

Numerical simulation on fuel vapor core configuration in fuel vapor core pump with radial straight blades

Jiangsu Province Key Laboratory of Aerospace Power System, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

摘要

摘要: 为获得燃油汽心泵内气态区域的形成过程及形态的变化规律,基于renormalization group(RNG) k-ε双方程湍流模型与Schnerr-Sauer空化相变模型,对径向直叶片燃油汽心泵进行了整体三维建模与气液两相定常数值模拟,分析转速、进口节流活门开度、出口压力等因素对燃油汽心泵内气态区域的影响.结果表明:一定转速范围内气态区域随转速增加而扩大;转速不变时出口压力增加会使气态区域范围减小;气态区域扩张至极限位置即叶轮直径外,燃油汽心泵进入不稳定工况.RNG k-ε双方程湍流模型和与Schnerr-Sauer空化相变模型适用于燃油汽心泵汽心形态的数值模拟.
- 汽心泵 /
- 径向直叶片叶轮 /
- 气液两相 /
- 气态区域 /
- 空化相变模型
Abstract: To obtain the establishment process and change rule of vapor core in the fuel vapor core pump, based on renormalization group (RNG) k-ε double-equation turbulence model and Schnerr-Sauer cavitation phase transition model, a fuel vapor core pump with radial straight blades was studied by overall three-dimensional geometry modeling and steady vapor-liquid two-phase numerical simulation. And the vapor phase region under the influences of rotation speed, throttle opening and outlet pressure was further analyzed. Results show that, the vapor core enlarges with the increasing rotation speed within a certain range of rotation speed, while the vapor core lessens as the outlet pressure increases at a constant rotation speed. When the vapor phase region expands to the limit position, namely passing through the impeller outlet, the vapor core pump runs under the unstable condition. Both RNG k-ε double-equation turbulence model and Schnerr-Sauer cavitation phase transition models can be applied to numerical simulation on vapor core configuration in the fuel vapor core pump.
- vapor core pump /
- impeller with radial straight blades /
- vapor-liquid two phase /
- vapor phase region /
- cavitation phase transition model

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参考文献(18)

[1]	孙健国,黄金泉,叶志锋,等.现代航空动力装置控制[M].北京:航空工业出版社,2009.
[2]	Pech K H,Downing N L.Development of a retracting vane centrifugal main fuel pump for gas turbine engines[J].Journal of Fluids Engineering,1976,98(4):619-625.
[3]	Rimmer R.The vapour core pump vortex inlet valve[C]//Proceedings of Fifth Cranfield Fluidics Conference.Cranfield:the British Hydromechanics Research Association,1972:14-41.
[4]	Kumar A,Goyal K.Cyclic pressure test of vapour core pump of reheat fuel control system of an aero-engine[J].International Journal of Engineering Research and Technology,2012,1(7):1-5.
[5]	Frank A,Leachman J.Vapor core centrifugal pump having main and low flow impellers:United States,4643635[P].1987-02-17.
[6]	史庆平,刘德彰.航空汽心泵叶轮流场的机理研究[J].航空学报,1985,6(5):511-512. SHI Qingping,LIU Dezhang.Mechanism research of flow field around aviation vapor core pump impeller[J].Acta Aeronautica et Astronautica Sinica,1985,6(5):511-512.(in Chinese)
[7]	顾民.汽心泵动态特性实验及数学模型[J].南京航空航天大学学报,1988,20(4):60-64. GU Min.Dynamic characteristic experiment and mathematical model of vapor core pump[J].Journal of Nanjing University of Aeronautics and Astronautics,1988,20(4):60-64.(in Chinese)
[8]	Shojaeefard M H,Tahani M,Ehghaghi M B,et al.Numerical study of the effects of some geometric characteristics of a centrifugal pump impeller that pumps a viscous fluid[J].Computers and Fluids,2012,60(3):61-70.
[9]	SHI Weidong,ZHOU Ling,LU Weigang,et al.Numerical prediction and performance experiment in a deep-well centrifugal pump with different impeller outlet width[J].Chinese Journal of Mechanical Engineering,2013,26(1):46-52.
[10]	LI Zhifeng,WU Dazhuan,WANG Leqin,et al.Numerical simulation of the transient flow in a centrifugal pump during starting period[J].Jorunal of Fluids Engineering,2010,132(8):081102.1-081102.8.
[11]	Barrio R,Fernández J,Blanco E,et al.Estimation of radial load in centrifugal pumps using computational fluid dynamics[J].European Journal of Mechanics:B Fluids,2011,30(3):316-324.
[12]	ZHANG Yuliang,LI Yi,CUI Baoling,et al.Numerical simulation and analysis of solid-liquid two-phase flow in centrifugal pump[J].Chinese Journal of Mechanical Engineering,2013,26(1):53-60.
[13]	薛梅新,朴英.加力燃油泵隔舌倒圆抑制分离的数值模拟[J].航空动力学报,2012,27(12):2799-2804. XUE Meixin,PIAO Ying.Numerical simulation on separation control by filleting casing tongue of after-burning fuel pump[J].Journal of Aerospace Power,2012,27(12):2799-2804.(in Chinese)
[14]	唐学林,贾玉霞,王福军,等.基于修正的RNG k-ε模型的水翼空化数值模拟[J].工程热物理学报,2012,33(9):1514-1518. TANG Xuelin,JIA Yuxia,WANG Fujun,et al.A modified RNG k-ε model of the numerical simulation on an airfoil[J].Journal of Engineering Thermophysics,2012,33(9):1514-1518.(in Chinese)
[15]	王勇,刘厚林,袁寿其,等.离心泵内部空化特性的CFD模拟[J].排灌机械工程学报,2011,29(2):99-103. WANG Yong,LIU Houlin,YUAN Shouqi,et al.CFD simulation on cavitation characteristics in centrifugal pump[J].Journal of Drainage and Irrigation Machinery Engineering,2011,29(2):99-103.(in Chinese)
[16]	Šavar M,Kozmar H,SutlovićI.Improving centrifugal pump efficiency by impeller trimming[J].Desalination,2009,249(2):654-659.
[17]	Shehata M H,Abd Elganny M E,Abd Elhafez A S,et al.Effect of shorted blade circumferential positions on centrifugal pump characteristics[C]//10th International Energy Conversion Engineering Conference.Atlanta,Georgia:AIAA,2012:1-19.
[18]	樊思齐,李华聪,樊丁,等.航空发动机控制[M].西安:西北工业大学出版社,2008.