汽心对汽心泵供油特性的影响研究

中国机械工程

汽心对汽心泵供油特性的影响研究

管华盛1;王彬1;邓卫华2;叶志锋1

1. 南京航空航天大学江苏省航空动力系统重点实验室,南京,210016
2.中国航空发动机集团贵州红林机械有限公司,贵阳,550009

出版日期:2017-02-25 发布日期:2017-02-24
基金资助:
国家自然科学基金资助项目(51205188)

Research on Effects of Vapor Core on Fuel Supply Characteristics of Vapor Core Pump

GUAN Huasheng1;WANG Bin1;DENG Weihua2;YE Zhifeng1

1.Jiangsu Province Key Laboratory of Aerospace Power Systems,Nanjing University of Aeronautics and Astronautics,Nanjing,210016
2.AVIC Guizhou Honglin Machinery Co.，Ltd.,Guiyang,550009

Online:2017-02-25 Published:2017-02-24

摘要/Abstract

摘要： 为研究汽心对供油特性的影响，对径向直叶片汽心泵进行了汽液两相非定常数值模拟。汽心大小可随进口节流活门开度和出口负载等变化，根据流量脉动情况分析了汽心对供油特性的影响规律；模拟了供油量对负载压力阶变的动态响应，据此获得汽心对流量动态性能的影响规律。结果表明，汽心不会造成供油量的显著脉动；活门开度在4~8mm范围时，汽心可减缓阶变对流量稳态值的影响，但使流量调节时间延长；2mm活门开度工况下，汽心接近叶轮出口，出口压力阶变越大，汽心调节后供油量脉动幅度也相应增大。

关键词: 汽心泵, 汽液两相, 汽心, 供油脉动

Abstract: To find the influences of vapor core on fuel supply characteristic, a VCP with radial straight blades was studied by unsteady vapor-liquid two-phase numerical simulation. Vapor core configuration varied from opening of inlet throttle valve and outlet load. The effect laws of vapor core on fuel supply characteristics were analyzed based on the fluctuations of fuel supply. Response of fuel supply to the steps of outlet pressures was simulated to discuss the influence of vapor core on dynamic performance for fuel supply. Results show that vapor core will not cause considerable fuel supply ripple. When the valve opening is in the range of 4~8mm, vapor core may weaken the influences of pressure steps on the steady-states of fuel supply, but prolong the stabilization of fuel supply. When valve opening is as 2mm, the vapor core is close to impeller outlet, and larger step amplitudes on supply pressures bring larger ripple on fuel supply rates after self-regulation of the vapor core.

Key words: vapor core pump(VCP), vapor-liquid two phases, vapor core, fuel supply ripple

中图分类号:

V233.2

管华盛, 王彬, 邓卫华, 叶志锋. 汽心对汽心泵供油特性的影响研究[J]. 中国机械工程.

GUAN Huasheng, WANG Bin, DENG Weihua, YE Zhifeng. Research on Effects of Vapor Core on Fuel Supply Characteristics of Vapor Core Pump[J]. China Mechanical Engineering.

参考文献

[1]HANSEN L D, KUCERA G D, CLEMONS J S, et al. Aircraft Gas Turbine Engine Fuel Pumping Systems in the 21st Century [J]. Journal of Engineering for Gas Turbines & Power, 1997, 119(3): 591-597.
[2]EATON M, KEOGH P S, EDGE K A. The Modelling, Prediction, and Experimental Evaluation of Gear Pump Meshing Pressures with Particular Reference to Aero-engine Fuel Pumps[J]. Proceedings of the Institution of Mechanical Engineers， Part I： Journal of Systems & Control Engineering, 2006, 220(5):365-379.
[3]张绍基. 军用航空发动机燃油与控制系统的研究和发展[J]. 航空发动机, 2000(3): 14-21.
ZHANG Shaoji. Research and Development of Fuel and Control System for Military Aviation Engine[J]. Aeroengine, 2000(3): 14-21.
[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 & Technology, 2012, 1(7):1-5.
[5]顾民. 汽心泵特性分析与计算方法[J]. 航空动力学报,1989,4(1):41-44.
GU Min. Analysis and Calculation of Vapor Pump Characteristics [J]. Journal of Aerospace Power, 1989,4(1):41-44.
[6]薛秋农. 汽心泵特性研究[J]. 航空学报,1989,10(4):139-146.
XUE Qiunong. Study of Vapour Core Pump Characteristics [J]. Acta Aeronautica et Astronautica Sinica,1989,10(4):139-146.
[7]于定鹏,王彬,邓卫华,等. 燃油汽心泵的数值模拟与试验[J]. 中国机械工程,2015,26(17):2389-2393.
YU Dingpeng, WANG Bin, DENG Weihua, et al. Numerical Simulation and Experiments of Vapor Core Pump [J]. China Mechanical Engineering, 2015,26(17):2389-2393.
[8]刘尚勤. 离心泵用作航空发动机主燃油泵研究[J]. 航空发动机,2006,32(2):43-45.
LIU Shangqin, Investigation of Centrifugal Pump Used as Aeroengine Main Fuel Pump[J]. Aeroengine, 2006,32(2):43-45.
[9]MATSUNAGA Y, MASUDA S. Development of Double Gear Fuel Pump for Heat Management Improvement[J]. Journal of the Japan Fluid Power System Society, 2010, 132(8):169-174.
[10]薛梅新,吴迪,朴英. 环形腔室径向宽度对加力燃油泵内流及性能影响[J]. 航空动力学报, 2012,27(3):689-694.
XUE Meixin, WU Di, PIAO Ying. Effect of Annular Chamber Radial Width on the Performance and Inner Flow Characteristics of an After-burning Oil Pump [J]. Journal of Aerospace Power, 2012,27(3):689-694.
[11]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.
[12]HONG S S, KIM D J, KIM J S, et al. Study on Inducer and Impeller of a Centrifugal Pump for a Rocket Engine Turbopump [J]. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2013, 227(2):311-319.
[13]李嘉,李华聪,符江锋,等. 一体式诱导轮与叶轮航空离心泵汽蚀特性研究[J].推进技术,2015,36(7):1005-1012.
LI Jia, LI Huacong, FU Jiangfeng,et al. Cavitation Study of Inducer and Impeller Combination Aero Centrifugal Pump [J]. Journal of Propulsion Technology, 2015, 36(7):1005-1012.
[14]王洪杰，舒崚峰,赵俊龙,等. 涡轮泵非设计工况压力脉动数值研究[J].推进技术, 2014,35(1):43-53.
WANG Hongjie, SHU Lingfeng, ZHAO Junlong, et al. Numerical Investigation of Pressure Fluctuation in Turbopumpunder Off-design Condition[J]. Journal of Propulsion Technology, 2014, 35(1): 43-53.
[15]JAFARZADEH B, HAJARI A, ALISHAHI M M, et al. The Flow Simulation of a Low-specific-speed High-speed Centrifugal Pump[J]. Applied Mathematical Modelling, 2011, 35(1): 242-249.
[16]SPEZIALE C G, THANGAM S. Analysis of an RNG Based Turbulence Model for Separated Flows[J]. International Journal of Engineering Science, 1992, 30(10): 1379-1388.