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环形内肋片圆管层流脉冲流动强化对流换热数值分析 被引量：11

Numerical analysis of the enhanced convection heat transfer in an annular finned tube with laminar pulsating flow
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摘要 为了解环形内肋片圆管中脉冲流动强化对流换热的机理,该文对这一现象进行了数值研究。数值计算结果表明:与具有相同Rem时的稳定流动相比,脉冲流动可使对流换热强化一倍以上,其强化效果与振荡频率、肋片高度和肋片间距有关;最佳量纲1振荡频率在400到1000之间,并随着Rem的增大而增加;对流换热强化的原因在于脉冲流动使由肋片引起的涡旋更加激烈,速度场和温度梯度场之间的协同性更好。 The convection heat transfer enhancement induced by pulsating flow in an annular finned tube was investigated numerically. The numerical results show that the pulsating flow enhances the convection heat transfer more than twice that of steady flow at the same Rem. The heat transfer enhancement depends on the pulsation frequency, the fin height and the fin pitch. The best dimensionless pulsating frequencies are 400 -1 000 and they increase with increasing Rem. The enhancement is due to the pulsating flow strengthening the vortex between the fins and improving the coordination of the temperature and velocity fields.
作者 俞接成 李志信
机构地区 清华大学航天航空学院
出处 《清华大学学报（自然科学版）》 EI CAS CSCD 北大核心 2005年第8期1091-1094,共4页 Journal of Tsinghua University(Science and Technology)
基金 国家"九七三"重点基础研究项目(G2000026301)
关键词 强化传热 环形内肋 层流脉冲流动 场协同 enhanced convection heat transfer annular finned tube laminar pulsating flow field coordination
分类号 TK172 [动力工程及工程热物理—热能工程]
  • 相关文献

参考文献10

  • 1Richardson E G, Tyler E. The transverse velocity gradient near the mouths of pipes in which an alternating or continuous flow is established [J]. Proceedings of the Physical Society, 1929, 42: 1-15.
  • 2Uchida S. The pulsating viscous flow superposed on the steady laminar motion of incompressible fluid in a circular pipe [J]. ZAMP, 1956, 7: 403-422.
  • 3Shuai X, Cheng S, Antonini G. Amelioration du transfert convectif de chaleur par l'doulement pulse dans un fluide visqueux [J]. The Canadian J Chem Eng, 1994, 72(6): 468-475.
  • 4Mamayev V V, Nosov V S, Syromyatnikov N I. Investigation of heat transfer in pulsed flow of air in pipes [J]. Heat Transfer-Soviet Research, 1976, 8(3): 111-116.
  • 5Mackley M R, Tweddle G M, Wyatt I D. Experimental heat transfer measurements for pulsatile flow in baffled tubes [J]. Chem Sci Eng, 1990, 45(5): 1237-1242.
  • 6Cho H W, Hyun J M. Numerical solution of pulsating flow and heat transfer characteristics in a pipe [J]. Int J Heat and Fluid Flow, 1990, 11(4): 321-330.
  • 7Yu J C, Li Z X, Zhao T S. An analytical study of pulsating laminar heat convection in a circular tube with constant heat flux [J]. Int J Heat Mass Transfer, 2004, 47(24): 5297-5301.
  • 8俞接成,李志信.圆管层流脉冲流动对流换热数值分析[J].工程热物理学报,2005,26(2):319-321. 被引量：10
  • 9QUO ZengyuanDepartment of Engineering Mechanics, Tsinghua University, Beijing 100084, China.Mechanism and control of convective heat transfer——Coordination of velocity and heat flow fields[J].Chinese Science Bulletin,2001,46(7):596-599. 被引量：65
  • 10Guo Z Y, Li Z X, Tao W Q, et al. Principle of field coordinated enhancement of single phase thermal convection [A]. Proceedings of 4th International Conference on Compact Heat Exchangers and Enhancement Technology for the Process Industries [C]. 2003. 77-87.

二级参考文献24

  • 1E G Richardson, E Tyler. The Transverse Velocity Gradient Near the Mouths of Pipes in Which an alternating or Continuous Flow Is Established. In: The Proceedings of the Physical Society. Landon, 1929. 42(231): 1-15.
  • 2S Uchida. The Pulsating Viscous Flow Superposed on the Steady Laminar Motion of Incompressible Fluid in a Circular Pipe. ZAMP, 1956, 7:403-422.
  • 3X Shuai, S Cheng, G Antonini. Amelioration du Transfert Convectif de Chaleur par L'doulement Pulse Dans un Fluide Visqueux. Can. J. Chem. Eng., 1994, 72:468-475.
  • 4M Faghri, K Javadani, A Faghri. Heat Transfer with Laminar Pulsating Flow in a Pipe. Letters in Heat and Mass Transfer, 1979, 6:259-270.
  • 5V V Mamayev, V S Nosov, N I Syromyatnikov. Investigation of Heat Transfer in Pulsed flow of Air in Pipes.Heat Transfer-Soviet Research, 1976, 8(3): 111-116.
  • 6H N Hemida, M N Sabry, A Abdel-Rahim, et al. Theoretical Analysis of Heat Transfer in Laminar Pulsating Flow. Int. J. Heat Mass Transfer, 2002, 45(8): 1767-1780.
  • 7M R Mackley, G M Tweddle, I D Wyatt. Experimental Heat Transfer Measurements for Pulsatile Flow in Baffled Tubes. Chem. Sci. Eng., 1990, 45(5): 1237-1242.
  • 8M R Mackley, P Stonestreet. Heat Transfer and Associated Energy Dissipation for Oscillatory Flow in Baffled Tubes. Chem. Sci. Eng., 1995, 50(14): 2211-2224.
  • 9T Moschandreou, M Zamir. Heat Transfer in a Tube with Pulsating Flow and Constant Heat Flux. Int. J. Heat Mass Transfer, 1997, 40(10): 2461-2466.
  • 10S Y Kim, B H Kang, J M Hyun. Heat Transfer in the Thermally Developing Region of a Pulsating Channel Flow. Int. J. Heat Mass Transfer, 1993, 36(17): 4257-4266.

共引文献73

同被引文献135

引证文献11

二级引证文献51

清华大学学报（自然科学版）
2005年 第8期

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