Numerical Simulation of Turbulent Heat Transfer in a Vertical Channel with Discrete Heat Wall

• Autorzy: Chesneau X. , Zeghmati B. , Abide S.
• Języki publikacji: EN

Abstrakty

EN

Turbulent heat transfer in a vertical channel with discrete heat wall source has been studied numerically. Three different cases were tested according to the heated part of the channel wall. In the first case the flux is applied on the left wall and at the top and the bottom of the right wall separated by an adiabatic zone. The second case, the flux is applied on a zone located on the middle of the left wall and the flux conditions are identical to the first case and in the third case, the right wall is soaked with water. Transfer equations associated to the Launder and Sharma low Reynolds number k-s model are solved using the finite volume method, Thomas and Gauss algorithms. Effects of heat flux density and Reynolds numbers on velocity, air and wall temperature, eddy viscosity, Nusselt and Sherwood numbers were investigated. From these results the driven buoyancy flow for low Reynolds numbers and great Rayleigh numbers affects substantially transfers along the channel. The adiabatic zone influences substantially heat and mass transfer along the channel.

Słowa kluczowe

EN

numerical simulation; heat transfer; vertical channel; heat wall; flux density

• Wydawca: Oficyna Wydawnicza Politechniki Warszawskiej
• Czasopismo: Machine Dynamics Research
• Rocznik: 2012
• Tom: Vol. 36, No. 1
• Strony: 48--63
• Opis fizyczny: Bibliogr. 10 poz., wykr.

Twórcy

autor

Chesneau X.

• Universite de Perpignan, LAboratoire de Mathematiques et PhySique France

autor

Zeghmati B.

• Universite de Perpignan, LAboratoire de Mathematiques et PhySique France

autor

Abide S.

• Universite de Perpignan, LAboratoire de Mathematiques et PhySique France

Bibliografia

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