Hartmann共振管及超音速雾化喷嘴流场的数值模拟

李博; 胡国辉; 周哲玮

Hartmann共振管及超音速雾化喷嘴流场的数值模拟

上海大学,上海市应用数学和力学研究所,上海 200072

详细信息

作者简介:
李博(1980- ),男,长春人,博士生(E-mail:reeboklee@163.com);周哲玮(联系人.Tel:+86-21-66134661;E-mail:zhwzhou@shu.edu.cn).

中图分类号: O354.2
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出版历程
- 收稿日期: 2007-08-27
- 修回日期: 2007-09-17
- 刊出日期: 2007-11-15

Numerical Simulation of Flow in the Hartmann Resonance Tube and Flow in the Ultrasonic Gas Atomizer

Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, P. R. China

摘要

摘要: 采用基于Roe解法的有限体积法，对Hartmann共振管中的气体流场进行了数值模拟，研究了当喷嘴轴线处存在针型激励器的情况下流场的振动情况，数值计算的结果与理论和相关的实验结果符合得较好．计算结果表明移除或引入激励器，将会使Hartmann共振管的共振模式发生转换．通过对超音速雾化喷嘴流场的数值模拟，研究了其中Hartmann共振腔和二级共振腔共同作用下的振动现象以及各物理参数对振动的影响，并对喷嘴中气流从亚音速向超音速的转变机理进行了研究．
- Hartmann共振管 /
- 喷射雾化 /
- 超音速雾化喷嘴 /
- 有限体积法 /
- Roe解法
Abstract: The gas flow in the Hartmann resonance tube was numerically investigated by the finite volume method based on the Roe solver. The oscillation of the flow was studied with the presence of a needle actuator set along the nozzle axis. Numerical results agree well with the theoretical and experimental results available. Numerical results indicate that the resonance mode of the resonance tube will switch by means of removing or adding the actuator. The gas flow in the ultrasonic gas atomization (USGA) nozzle was also studied by the same numerical methods. Oscillation caused by the Hartmann resonance tube structure, coupled with a secondary resonator, in the USGA nozzle was investigated. Effects of the variation of parameters on the oscillation were studied. The mechanism of the transition of subsonic flow to supersonic flow in the USGA nozzle was also discussed based on numerical results.
- Hartmann resonance tube /
- spray atomization /
- ultrasonic gas atomization /
- finite volume method /
- Roe solver

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参考文献(15)

[1]	Hartmann J，Trolle B.A new acoustic generator[J].J Sci Instr,1927,4(4):101-111. doi: 10.1088/0950-7671/4/4/303
[2]	Brocher E, Maresca A, Bournay M H.Fluid dynamics of the resonance tube[J].J Fluid Mech,1970,43(2):369-384. doi: 10.1017/S0022112070002422
[3]	Sarohia V, Back L H.Experimental investigation of flow and heating in a resonance tube[J].J Fluid Mech,1979,94(4):649-672. doi: 10.1017/S0022112079001233
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[6]	Hamed A. Das K, Basu D.Characterization of powered resonance tube for high frequency actuation[R]. FEDSM2003-45472, 2003.
[7]	Raman G, Khanafseh S,Cain A B,et al.Development of high bandwidth powered resonance tube actuators with feedback control[J].Journal of Sound and Vibration,2004，1031-1062.
[8]	Murugappan S, Gutmark E. Parametric study of the Hartmann-Sprenger tube[J].Experiments in Fluids,2005,38(6):813-823. doi: 10.1007/s00348-005-0977-5
[9]	Grant N J. Rapid solidification of metallic particulates[J].Journal of Metals,1983,35:20-26.
[10]	Zhou Z W, Tang X D.The effect of the pulsation in gas flow on the stability of melted metal jet[A].In:Fourth International Conference on Spray Forming[C].Baltimore,USA:University of Maryland Press,1999.
[11]	Veistinen M K,Lavernia E J,Baram J C,et al.Jet behavior in ultrasonic gas atomization[J].The International Journal of Powder Metallurgy,1989,25(2):89-92.
[12]	Mansour A, Chigier N, Shih T,et al.The effects of the Hartman cavity on the performance of the USGA nozzle needed for aluminum spray forming[J].Atomization and Sprays,1998,8(1):1-24.
[13]	Roe P L. Approximate Riemann solvers, parameter vectors, and difference schemes[J].Journal of Computational Physics,1981,43(2):357-372. doi: 10.1016/0021-9991(81)90128-5
[14]	Brocher E, Duport E.Resonance tubes in a subsonic flow field[J].AIAA J,1988,26(5):548-552. doi: 10.2514/3.9932
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Hartmann共振管及超音速雾化喷嘴流场的数值模拟

作者简介:
李博(1980- ),男,长春人,博士生(E-mail:reeboklee@163.com);周哲玮(联系人.Tel:+86-21-66134661;E-mail:zhwzhou@shu.edu.cn).

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Numerical Simulation of Flow in the Hartmann Resonance Tube and Flow in the Ultrasonic Gas Atomizer

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Hartmann共振管及超音速雾化喷嘴流场的数值模拟

作者简介: 李博(1980- ),男,长春人,博士生(E-mail:reeboklee@163.com);周哲玮(联系人.Tel:+86-21-66134661;E-mail:zhwzhou@shu.edu.cn).

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出版历程

Numerical Simulation of Flow in the Hartmann Resonance Tube and Flow in the Ultrasonic Gas Atomizer

计量

出版历程

目录

作者简介:
李博(1980- ),男,长春人,博士生(E-mail:reeboklee@163.com);周哲玮(联系人.Tel:+86-21-66134661;E-mail:zhwzhou@shu.edu.cn).