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받음각이 큰 평판 채널 내의 역류 유동 해석

Flow Analysis of Reverse Flow in a Channel with High Angle of Attack

  • 최승 (경북대학교 기계공학부 대학원) ;
  • 손창현 (경북대학교 기계공학부)
  • 발행 : 2007.06.30

초록

Reverse flow occurs in a channel when there is an obstruction at the entry. However it has been shown recently that reverse flow can be realized without an obstruction, by staggering the sides of the channel and placing it at an angle of attack to the oncoming flow. In this study the latter flow is computationally investigated. Studies have been carried out for different widths (gap between the two walls forming the channel), and at an angle of attack of 30. The results have captured all the essential features of this complex phenomenon and show the time dependent pumping mechanism which leads to the occurrence of reverse flow.

키워드

참고문헌

  1. Gowda, B.H.L., Tulapurkara, E.G. , 1989, "Reverse Flow in a Channel with an Obstruction at the Entry", Journal of Fluid Mechanics,vol. 204, pp. 229-244. https://doi.org/10.1017/S0022112089001734
  2. Gowda, B.H.L., Tulapurkara, E.G., Swain, S. K., 1993, "Reverse Flow in a Channel-Influence of Obstruction Geometry, Experiments in Fluids", vol.16, pp. 137-145. https://doi.org/10.1007/BF00944915
  3. Tulapurkara, E.G., Gowda, B.H.L. , 1994, Swain, S. K., 1994, "Reverse Flow in a Channel-Effect of Front and Rear Obstructions", Phys. Fluids, vol. 6, pp. 3847-3853. https://doi.org/10.1063/1.868376
  4. Gowda, B.H.L., Tulapurkara, E.G., Swain, S. K., 1997, "Influence of Splitter Plate on the Reverse Flow in a Channel", Fluid Dynamics Research, vol.21, pp. 319-330. https://doi.org/10.1016/S0169-5983(97)00018-X
  5. Gowda, B.H.L., Tulapurkara, E.G., Swain, S. K., 1998, "On the Mechanism of Reverse Flow in a Channel with an Obstruction at the Entry, Fluid Dynamics Research", vol.23, pp. 177-187. https://doi.org/10.1016/S0169-5983(97)00057-9
  6. Kabir, M.A., Kabir, M.M.K., Bhuiyan, M.A., 2003, "A study of the flow phenomenon of water in a channel with flat plate obstruction geometry at the entry", KSME Int. J, vol.17, pp.879-887.
  7. Kabir, M.A., Kabir, M.M.K., Bhuiyan, M.A., 2004, "Flow phenomenon in a channel with different shaped obstructions at the entrance", Fluid Dynamic Research, vol.35, pp.395-408.
  8. Kabir, M.A., Kabir, M.M.K., 2000, "Reverse flow of a non Newtonian fluid in a channel, Rheology Congress", Cambridge UK, vol.3, pp.417-418
  9. Kumar S. K., Tulapurkara E.G., Biswas G. and Gowda B.H.L., 2005, "Reverse flow in a channel with obstruction at entry, Fluid Dynamic Research", vol.37, pp.387-398. https://doi.org/10.1016/j.fluiddyn.2005.07.003
  10. Tulapurkara, E.G., Gowda, B.H.L., Nijith N., 2004, "Manath, Experimental Study of Reverse Flow in a Channel without Obstruction at the Entry, Proceedings", 31st National Conference on FMFP, December 16-18, pp. 1-8.
  11. Tulapurkara, E.G., Gowda, B.H.L., Manath, Nijith N., Sohn, C.H., "Experimental Study of Reverse Flow in a Channel without Obstruction at the Entry", J. of Flow Visualization and Image Processing, vol. 13, No. 4, pp.1-14.
  12. Huntsville, Alabama, 2004, "Modules Manual", ESI US R&D Inc, CFD-ACE(+) V2004.