1. Laminar unsteady flow and heat transfer in confined channel flow past square bars arranged side by side Professor Alvaro Valencia Universidad de Chile Department of Mechanical Engineering
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3. Turbulent flow near a wall, Re=22000, experimental results, Bosch ( 1995) Numerical results, k- turbulence model
6. Numerical simulation of laminar flow around two square bars arranged side by side with free flow condition. Bosch (1995) Re c =100 G/H c =0,2 1 bar behavior
7. Re c =100 G/H c =0,75 Bistable vortex shedding For G/d >1.5 synchronization of the vortex shedding in anti-phase or in-phase
42. Mean Heat Transfer enhancement and Pressure drop increase Nuo and fo for a plane channel without built-in square bars Nu 0 = 7,68 and f 0 = 0,01496 Nu with 1 square bar=8.52 f with 1 square bar =0.053
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46. References [1] H. Suzuki, Y. Inoue, T. Nishimura, K. Fukutani, k. Suzuki, Unsteady flow in a channel obstructed by a square rod (crisscross motion of vortex). International Journal of Heat and Fluid Flow 14 (1993) 2-9. [2] A. K. Saha, K. Muralidhar, G. Biswas, Transition and chaos in two-dimensional flow past a square cylinder, Journal of Engineering Mechanics, 126, (2000), 523-532. [3] M. Breuer, J. Bernsdorf, T. Zeiser, F. Durst, Accurate computations of the laminar flow past a square cylinder based on two different methods: lattice-Boltzmann and finite-volume, International Journal of Heat and Fluid Flow, 21, (2000), 186-196. [4] J. L Rosales, A. Ortega, J.A.C. Humphrey, A numerical simulation of the convective heat transfer in confined channel flow past square cylinders: comparison of inline and offset tandem pairs, International Journal of Heat and Mass Transfer, 44, (2001), 587-603. [5] K. Tatsutani, R. Devarakonda, J.A.C. Humphrey, Unsteady flow and heat transfer for cylinder pairs in a channel, International Journal of Heat and Mass Transfer, 36, (1993), 3311-3328. [6] A. Valencia, Numerical study of self-sustained oscillatory flows and heat transfer in channels with a tandem of transverse vortex generators, Heat and Mass Transfer, 33, (1998), 465-470. [7] D. Sumner, S.J. Price, M.P. Païdoussis, Flow-pattern identification for two staggered circular cylinders in cross-flow, Journal of Fluid Mechanics, 411, (2000), 263-303. [8] C.H.K. Williamson, Evolution of a single wake behind a pair of bluff bodies, Journal of Fluid Mechanics, 159, (1985), 1-18. [9] J.J. Miau, H.B. Wang, J.H. Chou, Flopping phenomenon of flow behind two plates placed side-by-side normal to the flow direction, Fluid Dynamics Research, 17, (1996), 311-328. [10] M. Hayashi, A. Sakurai, Wake interference of a row of normal flat plates arranged side by side in a uniform flow, Journal of Fluid Mechanics, 164, (1986), 1-25. [11] S.C. Luo, L.L. Li, D.A. Shah, Aerodynamic stability of the downstream of two tandem square-section cylinders, Journal of Wind Engineering and Industrial Aerodynamics, 79, (1999), 79-103. [12] G. Bosch, Experimentelle und theoretische Untersuchung der instationären Strömung um zylindrische Strukturen, Ph.D. Dissertation, Universität Fridericiana zu Karlsruhe, Germany, (1995). [13] S. Patankar, Numerical heat transfer and fluid flow, Hemisphere Publishing Co., New York, (1980). [14] J.P. van Doormaal, G.D. Raithby, Enhancements of the SIMPLE method for predicting incompressible fluid flows. Numerical Heat Transfer, 7, (1984), 147-163.