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Unsteady Flows Characteristics in a Channel with Oblique Plates

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DOI: 10.4236/jamp.2015.38119    2,552 Downloads   2,881 Views   Citations

ABSTRACT

Unsteady flows in a channel with oblique plates have been numerically investigated. The oblique plates as disturbance promoters are installed at the upper wall. Unsteady characteristics are examined for Re = 350 and the plate angles of a = 60- 120. The flow fields represent three-dimensional features variously as the plate angle varies. From frequency analysis, it is noted that the disturbed flow by the oblique plates has peculiar unsteady modes. As the flow is more unstable, multiple frequencies are appeared.

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Zhan, Y. and Park, T. (2015) Unsteady Flows Characteristics in a Channel with Oblique Plates. Journal of Applied Mathematics and Physics, 3, 974-979. doi: 10.4236/jamp.2015.38119.

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1] Rowley, G.J. and Patankar, S.V. (1983) Analysis of Laminar Flow and Heat Transfer in Tubes with Internal Circumferential Fins. Int. J. Heat Mass Transfer, 27, 553-560. http://dx.doi.org/10.1016/0017-9310(84)90028-0
[2] Mackley, M.R. and Stonestreet, P. (1995) Heat Transfer and Associated Energy Dissipation for Oscillatory Flow in Baffled Tubes. Chemical Engineering Science, 50, 2211-2224. http://dx.doi.org/10.1016/0009-2509(95)00088-M
[3] Cheng, C.H. and Huang, W.H. (1991) Numerical Prediction for Laminar Forced Convection in Parallel-Plate Channels with Transverse Fin Arrays. Int. J. Heat Mass Transfer, 34, 2739-2749. http://dx.doi.org/10.1016/0017-9310(91)90232-4
[4] Korichi, A., Oufer, L. and Polidori, G. (2009) Heat Transfer Enhancement in Self-Sustained Oscillatory Flow in a Grooved Channel with Oblique Plates. Int. J. Heat Mass Transfer, 52, 1138-1148. http://dx.doi.org/10.1016/j.ijheatmasstransfer.2008.09.013
[5] Zhan, Y.X. and Park, T.S. (2014) Effect of Insulated Oblique Plates on Heat Transfer and Recirculating Flow in a Channel. Journal of Applied Mathematics and Physics, 2, 405-410. http://dx.doi.org/10.4236/jamp.2014.26048
[6] Yang, K.S. (2000) Numerical Investigation of Instability and Transition in an Obsturcted Channel Flow. AIAA Journal, 38, 1173-1178. http://dx.doi.org/10.2514/2.1111
[7] Kang, C.W. and Yang, K.S. (2011) Heat Transfer Characteristics of Baffled Channel Flow. Journal of Heat Transfer, 133, Article ID: 091901-1. http://dx.doi.org/10.1115/1.4003829
[8] Kang, C.W. and Yang, K.S. (2012) Flow Instability in Baffled Channel Flow. Int. J. Heat and Fluid Flow, 38, 40-49. http://dx.doi.org/10.1016/j.ijheatfluidflow.2012.08.002
[9] Kwankaomeng, S. and Promvonge, P. (2010) Numerical Prediction on Laminar Heat Transfer in Square Duct with 30? Angled Baffle on One Wall. International Communications in Heat and Mass Transfer, 37, 857-866. http://dx.doi.org/10.1016/j.icheatmasstransfer.2010.05.005
[10] Promvonge, P., Jedsadaratanachai, W., Kwankanomeng, S. and Thianpong, C. (2012) 3D Simulation of Laminar Flow and Heat Transfer in V-Baffled Square Channel. International Communications in Heat and Mass Transfer, 39, 85-93. http://dx.doi.org/10.1016/j.icheatmasstransfer.2011.09.004
[11] Park, T.S. (2006) Effects of Time-Integration Method in a Large-Eddy Simulation Using The PISO Algorithm: Part Ι-Flow Field. Numerical Heat Transfer, Part A, 50, 229-245. http://dx.doi.org/10.1080/10407780600602374
[12] Guzmán, A.M. and Amon, C.H. (1994) Transition to Chaos in Converging-Diverging Channel Flows: Ruelle-Takens- Newhouse scenario. Phy. Fluids, 6, 1994-2002. http://dx.doi.org/10.1063/1.868206

  
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