Effect of Aspect Ratio on Natural Convection in a Cavity with Wavy Walls

• Authors: M. Arici , M. Kan , H. Karabay
• Languages of publication: EN

Abstracts

EN

In this study, flow characteristics and natural convection in a cavity with two wavy walls is studied numerically. The wavy walls of the cavity are isothermal and at different temperatures while other straight walls are adiabatic. The fluid considered inside the cavity is air having Prandtl number of 0.71. A parametric study is conducted for various aspect ratios (1 ≤ AR ≤ 5), Rayleigh numbers (10³ ≤ Ra_{H} ≤ 10⁶) and inclination angles (0° ≤ θ ≤ 180°). Streamlines, isotherms and local and mean Nusselt numbers are presented to show the effect of the investigated parameters on the flow field and heat transfer.

Keywords

EN

44.25.+f; 47.15.Rq; 47.55.P-; 47.20.Bp

Discipline

• 47.20.Bp: Buoyancy-driven instabilities (e.g., Rayleigh-Benard)
• 44.25.+f: Natural convection(see also 47.27.te Turbulent convective heat transfer in fluid dynamics)
• 47.55.P-: Buoyancy-driven flows; convection
• 47.15.Rq: Laminar flows in cavities, channels, ducts, and conduits

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 128
• Issue: 2B
• Pages: B-197-B-200

Dates

published

2015-8

Contributors

author

M. Arici

• Kocaeli University, Engineering Faculty, Mechanical Engineering Department, 41380 Kocaeli, Turkey

author

M. Kan

• Kocaeli University, Engineering Faculty, Mechanical Engineering Department, 41380 Kocaeli, Turkey

author

H. Karabay

• Kocaeli University, Engineering Faculty, Mechanical Engineering Department, 41380 Kocaeli, Turkey

References

• [1] L.S. Yao, ASME J. Heat Transf. 105, 465 (1983), doi: 10.1115/1.3245608
• [2] L.S. Yao, Int. J. Heat Mass Transf. 49, 281 (2006), doi: 10.1016/j.ijheatmasstransfer.2005.06.026
• [3] Y. Varol, H.F. Oztop, Build. Environm. 43, 1535 (2008), doi: 10.1016/j.buildenv.2007.09.002
• [4] M. Ashjaee, M. Amiri, J. Rostami, 10.1007/s00231-006-0221-8HUKHUKHeat Mass Transf. 44, 101 (2007)
• [5] L. Adjlout, O. Imine, A. Azizi, M. Belkadi, 10.1016/S0017-9310(01)00304-0HUKHUKInt. J. Heat Mass Transf. 45, 2141 (2002)
• [6] A. Sabeur-Bendehina, O. Imine, L. Adjlout, 10.1016/j.crme.2010.11.001HUKHUKCompt. Rend. Mecan. 339, 42 (2011)
• [7] A. Sabeur-Bendehina, L. Adjlout, O. Imine, 10.1016/j.crme.2010.11.001HUKHUKJ. Appl. Sci. 3, 710 (2006)
• [8] A. Dalal, M.K. Das, 10.1016/j.ijheatmasstransfer.2004.07.051HUKHUKInt. J. Heat Mass Transf. 48, 3833 (2005)
• [9] S. Mahmud, P.K. Das, N. Hyder, A.K.M.S. Islam, 10.1016/S1290-0729(02)01336-4HUKHUKInt. J. Thermal Sci. 41, 440 (2002)
• [10] G. De Vahl Davis, 10.1002/fld.1650030305HUKHUKInt. J. Numer. Meth. Fluids 3, 249 (1983)
• [11] T. Fusegi, J.M. Hyun, K. Kuwahara, B. Farouk, 10.1016/0017-9310(91)90295-PHUKHUKInt. J. Heat Mass Transf. 34, 1543 (1991)

Identifiers

DOI

10.12693/APhysPolA.128.B-197