Effect of radial fins on natural convection between horizontal circular and square cylinders

• Autorzy: Jafari I. , Mahdavy-Moghadam H. , Taeibi-Rahni M. , Dayyan M. , Seyyedi S. M.
• Języki publikacji: EN

Abstrakty

EN

In this paper, the effects of the number and arrangement of radial fins on laminar natural co- nvection between horizontal circular and square cylinders has been investigated numerically with the lattice Boltzmann method. The Rayleigh number is varied from Ra = 10³ − 10⁶), the number of fins (N = 2 − 8) and the Prandtl number (Pr = 0.7). The local Nusselt number profiles over the outer and inner cylinders and the average Nusselt number over the top, bottom and side walls of the outer cold square cylinder are obtained. The temperature and streamline contours are also depicted to investigate the heat and fluid flow behavior inside the computational domain.

Słowa kluczowe

EN

radial fins; natural convection; lattice Boltzmann method; horizontal annulus

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2014
• Tom: Vol. 52 nr 3
• Strony: 827--837
• Opis fizyczny: Bibliogr. 9 poz., rys., tab.

Twórcy

autor

Jafari I.

• Department of Mechanical and Aerospace Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran

autor

Mahdavy-Moghadam H.

• Department of Mechanical and Aerospace Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran

autor

Taeibi-Rahni M.

• Department of Mechanical and Aerospace Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran

autor

Dayyan M.

• Department of Mechanical and Aerospace Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran

autor

Seyyedi S. M.

• Department of Mechanical Engineering, Babol University of Technology, Babol, Iran

Bibliografia

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