Performance of Partially Filled Mini-Channels with Porous Media

Please enable javascript in your browser.

Azimi, Adel | 2012

2124 Viewed

Type of Document: M.Sc. Thesis
Language: English
Document No: 44006 (58)
University: Sharif University of Technology, International Campus, Kish Island
Department: Science and Engineering
Advisor(s): Nouri, Ali; Moosavi, Ali
Abstract:
Laminar forced convection flow through a channel partially filled with a porous material was numerically studied in this thesis. The Navier-Stokes and Brinkman-Forchheimer equations were used to model the fluid flow in the free and porous regions, respectively. Coupling of the pressure and velocity fields was resolved using the SIMPLEC algorithm. The local thermal equilibrium was adopted in the energy equation. The effects of the thermal conductivity ratio, Darcy number, porosity, Reynolds number and height of the porous insert on velocity and temperature field were investigated. The results show that the flow behavior and its associated heat transfer are susceptible to the variation of the above parameters. It is found that for a channel with porous media resides on the wall an increase in Darcy number and the thermal conductivity ratio has a positive effect whereas increasing the height of the porous insert, Reynolds number, and porosity has a negative effect on heat transfer. Also it was found that Darcy number has the most effective influence on the velocity profile whereas the porosity has the least effect
Keywords:
Heat Transfer ; Porous Media ; Numerical Solution ; Convection Heat Transfer ; Local Thermal Equilibrium ; Laminar Flow