紧凑式强预冷换热器叉排管束的大涡模拟

陈一鸣; 李泽鹏; 张俊强; 邹正平

doi:10.13224/j.cnki.jasp.2021.04.003

紧凑式强预冷换热器叉排管束的大涡模拟

doi: 10.13224/j.cnki.jasp.2021.04.003

1.
北京航空航天大学能源与动力工程学院,北京 100191
2.
北京航空航天大学能源与动力工程学院航空发动机气动热力国家级重点实验室,北京 100191
3.
北京航空航天大学航空发动机研究院,北京 100191

基金项目: 民用飞机专项科研技术研究项目(MJ-2016-D-35)

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出版历程
- 收稿日期: 2020-08-20
- 刊出日期: 2021-04-28

Large eddy simulation on the staggered tube bundle of the compact precooler

1.
School of Energy and Power Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100191,China
2.
National Key Laboratory of Science and Technology on Aero-Engine,Aero-thermodynamics,School of Energy and Power Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100191,China
3.
Research Institute of Aero-engine,Beijing University of Aeronautics and Astronautics,Beijing 100191,China

摘要

摘要: 采用大涡模拟方法对紧凑式强预冷换热器叉排管束的对流换热问题进行了研究,并运用动力模态分解(DMD)方法对流场的拟序结构及换热统计特性进行了分析。结果表明:在计算工况内(Re≤6 000),前排管束的流动结构为有规律的剪切层运动和尾涡脱落。后排管束的流动结构为无规律的小尺度旋涡结构,同时其流场表现出无序性;前排管表面瞬时努塞尔数具有较为固定的波动频率,而后排管壁由于受到前排圆管脱落旋涡的无规律撞击,其管壁瞬时Nu无固定波动频率;在Re=2 600的工况下,管束内的熵产主要来源于换热而非耗散,主要流动结构对耗散熵产和换热熵产的贡献在管壁边界层和自由剪切层位置,其对前排管的熵产有较大贡献,而对后排管熵产的贡献较小。
- 预冷换热器 /
- 叉排管束 /
- 流热耦合 /
- 大涡模拟 /
- 动力模态分解 /
- 拟序结构
Abstract: The large-eddy simulation was carried out to research convective heat transfer in the staggered tube bundle of the compact precooler. Besides, the dynamic mode decomposition (DMD) method was used to analyze the coherent structure and statistical characteristic of heat transfer of cross-row tube bundles. Results showed that within the simulated operating range (Re≤6 000), the flow structure of the front tube bundle exhibited regular shear layer movement and wake vortex shedding. The flow structure of the rear tube bundle was an irregular small-scale vortex structure, and the disorderly flow field of the rear tube bundle was presented. The instantaneous Nusselt number on the surface of the front rows had a relatively fixed wave frequency, while the instantaneous Nu on the back rows had no fixed wave frequency because of the irregular impact of the falling vortex of the front rows. Under the condition of Re=2 600, the entropy production in the bundle mainly came from heat transfer rather than dissipation. The main flow structure contributed to the dissipative entropy production and heat transfer entropy production in the location of the boundary layer and free shear layer on the tube wall. It contributed greatly to the entropy production in the front row tubes, but less to the entropy production in the back row tubes.
- precooler /
- staggered tube bundle /
- fluid-thermal coupling /
- large eddy simulation /
- dynamic mode decomposition /
- coherent structure

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参考文献(22)

[1]	邹正平,刘火星,唐海龙,等.高超声速航空发动机强预冷技术研究［J］.航空学报,2015,36(8):2544-2562. ZOU Zhengping,LIU Huoxing,TANG Hailong,et al.Precooling technology study of hypersonic aeroengine［J］.Acta Aeronautica et Astronautica Sinica,2015,36(8):2544-2562.(in Chinese)
[2]	TANG Ming,MAMPLATA C,et al.Two steps instead of a giant leap-an approach for air breathing hypersonic flight［R］.AIAA-2011-2237,2011.
[3]	朱岩,马元,张蒙正.预冷空气涡轮火箭发动机氦循环系统的参数特性［J］.航空动力学报,2018,33(8):2016-2024. ZHU Yan,MA Yuan,ZHANG Mengzheng.Characteristic of helium cycle systems parameters for pre-cooling air turbo rocket engine［J］.Journal of Aerospace Power,2018,33(8):2016-2024.(in Chinese)
[4]	LONGSTAFF R,BOND A.The SKYLON project［R］.AIAA-2011-2244,2011.
[5]	CECERE D,GIACOMAZZI E,INGENITO A.A review on hydrogen industrial aerospace applications［J］.International Journal of Hydrogen Energy,2014,39(20):10731-10747.
[6]	VARVILL R.Heat exchanger development at Reaction Engines Ltd.［J］.Acta Astronautica,2010,66(9/10):1468-1474.
[7]	MURRAY J J,HEMPSELL C M,BOND A.An experimental precooler for airbreathing rocket engines［J］.Journal of the British Interplanetary Society,2001,54:199-209.
[8]	汪元,王振国.空气预冷发动机及微小通道流动传热研究综述［J］.宇航学报,2016,37(1):11-20. WANG Yuan,WANG Zhenguo.Review on precooled combined cycle engine and mini and micro channel flow heat transfer［J］.Journal of Astronautics,2016,37(1):11-20.(in Chinese)
[9]	杨新垒,聂万胜,刘晓慧.SABRE吸气模式热力循环及预冷器性能分析［J］.战术导弹技术,2018(1):104-110. YANG Xinlei,NIE Wansheng,LIU Xiaohui.Performance analysis of thermodynamic cycle and pre-cooler in sabre air-breathing mode［J］.Journal of Tactical Missile Technology,2018(1):104-110.(in Chinese)
[10]	武翼飞.微小尺度流动换热及换热器不确定性研究［D］.北京:北京航空航天大学,2016. WU Yifei.Study on microscale flow with heat transfer and uncertainty design of heat exchangers［D］.Beijing:Beijing University of Aeronautics and Astronautics,2016.(in Chinese)
[11]	YU Shufang,JONES T,OGAWA H,et al.Multi-objective design optimization of precoolers for hypersonic airbreathing propulsion［J］.Journal of Thermophysics and Heat Transfer,2016,31(2):1-13.
[12]	ZDRAVISTCH F,FLETCHER C A,BEHNIA M.Numerical laminar and turbulent fluid flow and heat transfer predictions,in tube banks［J］.International Journal of Numerical Methods for Heat and Fluid Flow,1995,5(8):717-733.
[13]	PAUL S S,ORMISTON S J,TACHIE M F.Experimental and numerical investigation of turbulent cross-flow in a staggered tube bundle［J］.International Journal of Heat and Fluid Flow,2008,29(2):387-414.
[14]	LIANG C,PAPADAKIS G.Large eddy simulation of cross-flow through a staggered tube bundle at subcritical Reynolds number［J］.Journal of Fluidsand Structures,2007,23(8):1215-1230.
[15]	WEBBER H,TAYLOR N.Local heat transfer measurements inside a compact heat exchanger［R］.AIAA-2010-4653,2010.
[16]	TALER D.Prediction of heat transfer correlations for compact heat exchangers［J］.Forschung Im Ingenieurwesen,2005,69(3):137-150.
[17]	YOO S Y,KWON H K,KIM J H.A study on heat transfer characteristics for staggered tube banks in cross-flow［J］.Journal of Mechanical Science and Technology,2007,21(3):505-512.
[18]	LINTON D,THORNBER B.Direct numerical simulation of transitional flow in a staggered tube bundle［J］.Physics of Fluids,2016,28(2):31-60.
[19]	KOU Jiaqing,ZHANG Weiwei.An improved criterion to select dominant modes from dynamic mode decomposition［J］.European Journal of Mechanics:B Fluids,2017,62:109-129.
[20]	SEENA A,SUNG H J.Dynamic mode decomposition of turbulent cavity flows for self- sustained oscillation［J］.International Journal of Heat and Fluid Flow,2011,32(6):1098-1110.
[21]	ZDRAVKOVICH M M.Flow around circular cylinders:volume Ⅰ fundamentals［M］.Oxford,UK:Oxford Science Publications,1997.
[22]	吴亚东,李涛,赖生智.POD和DMD方法分析不同间隙压气机旋转不稳定性特性［J］.航空动力学报,2019,34(9):2018-2026. WU Yadong,LI Tao,LAI Shengzhi.Analysis of rotating instability characteristics in compressor with different tip clearances by POD and DMD methods［J］.Journal of Aerospace Power,2019,34(9):2018-2026.(in Chinese)