Heat transfer in a turbulent channel flow with a permeable wall

• Autorzy: Kuznetsov, A. V. , Xiang, P.
• Języki publikacji: EN

Abstrakty

EN

A problem of turbulent flow in a channel with a permeable wall recently considered in Hahn and Choi (2002) is extended to include heat transfer. A model is utilized to investigate this problem numerically. The modeling is based on the assumption that the flow in the channel is turbulent while in the porous block the flow remains laminar. The wall functions approach is utilized to determine the boundary conditions for the k and equations. The dependence of the Nusselt number on the Darcy and Reynolds numbers is investigated.

Słowa kluczowe

PL

mechanika płynów

EN

Reynolds number

• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2006
• Tom: Vol. 11, no 3
• Strony: 705-713
• Opis fizyczny: Bibliogr. 6 poz., rys., wykr.

Twórcy

autor

Kuznetsov, A. V.

autor

Xiang, P.

• Dept. of Mechanical and Aerospace Engineering, North Carolina State University Campus Box 7910, Raleigh, NC 27695-7910, USA,

Bibliografia

• Beavers G.S. and Joseph D.D. (1967): Boundary conditions at a naturally permeable wall. - Journal of Fluid Mechanics, vol.30, pp.197-207.
• Hahn S., Je J. and Choi H. (2002): Direct numerical simulation of turbulent channel flow with permeable walls. - Journal of Fluid Mechanics, vol.450, pp.259-285.
• Henkse R.A.W.M. and Hoogendoorn C.J. (1989): Comparison of turbulence models for the natural convection boundary layer along a heated vertical plate. - International Journal of Heat and Mass Transfer, vol.32, pp.157-169.
• Lage J.L., de Lemos M.J.S. and Nield D.A. (2002): Modeling Turbulence in Porous Media. - Transport Phenomena in Porous Media II, D.B. Ingham and I Pop, eds., Chapter 8, Oxford: Elsevier, pp.198-230.
• Nield D.A. and Bejan A. (1999): Convection in Porous Media. - 2nd ed., New York: Springer.
• Zhu J. and Kuznetsov A.V. (2005): Forced convection in a composite parallel plate channel: Modeling the effect of interface roughness and turbulence utilizing a k -e model. - International Communications in Heat and Mass Transfer, in press.