Title :
A CFD study of turbulent heat transfer and fluid flow through the channel with semicircle rib
Author :
Togun, Hussein ; Abdulrazzaq, Tuqa ; Kazi, S.N. ; Badarudin, A. ; Arifjin, M.K.A.
Author_Institution :
Dept. of Mech. Eng., Univ. of Malaya, Kuala Lumpur, Malaysia
Abstract :
In the present paper turbulent heat transfer and fluid flow through the channel with semicircle ribs numerically studied. The SST k-ω turbulence Model with finite volume method was employed in simulation. The adopted boundary condition considered step heights of ribs varied from 2.5mm to 10mm with pitch ratio different from 2.5 to 40 and flow Reynolds number between 10000 to 25000 at constant surface temperature. The computational results showed recirculation region after each ribs which effect on performance of heat transfer rate. Increase of Reynolds number and number of ribs leads to increase in heat transfer coefficient. Step height and pitch ratio of ribs increase local heat transfer coefficient along the channel. This simulation has been done by ANSYS 14 FLUENT.
Keywords :
channel flow; computational fluid dynamics; finite volume methods; flow simulation; heat transfer; turbulence; ANSYS 14 FLUENT; CFD study; SST k-ω turbulence model; adopted boundary condition; channel fluid flow; constant surface temperature; finite volume method; flow Reynolds number; heat transfer rate; local heat transfer coefficient; recirculation region; rib pitch ratio; rib step height; semicircle rib; turbulent heat transfer; Ducts; Fluid flow; Heat engines; Heat transfer; Mathematical model; Ribs; Space heating; Enhancement heat transfer; Recirculation flow; Ribs conduit; Turbulent flow;
Conference_Titel :
Clean Energy and Technology (CEAT), 2013 IEEE Conference on
Conference_Location :
Lankgkawi
Print_ISBN :
978-1-4799-3237-5
DOI :
10.1109/CEAT.2013.6775647
