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- 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
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- Chapter 1 Introduction
- Chapter 2 Literature Review
- Chapter 3 Mathematical Formulation
- Chapter 4 Numerical Solution
- Chapter 5 Results and Discussion
- 5.1 Validation Test Case 1: Heat Transfer in a 2-D Rectangular Channel
- 5.2 Validation Test Case 2: Fluid Flow in a 2-D Rectangular Channel
- 5.3 Validation Test Case 3: Fluid flow in a 2-D Rectangular Channel with porous media
- 5.4 Geometric Configuration and Boundary Conditions
- 5.5 Effect of Reynolds Number (Re) on Developing Velocity Profile
- 5.6 Effect of Darcy Number (Da) on Developing Velocity Profile
- 5.7 Effect of Non-Dimensional Porous substrate Thickness (S) on Developing Velocity Profile
- 5.8 Effect of Porosity (ε) on Developing Velocity Profile
- 5.9 Effect of Thermal Conductivity Ratio (TCR) on Heat Transfer
- 5.10 Effect of Non-Dimensional Porous Substrate Thickness (S) on Heat Transfer
- 5.11 Effect of Darcy Number (Da) on Heat Transfer
- 5.12 Effect of Porosity (ε) on Heat Transfer
- 5.13 Effect of Reynolds Number (Re) on Heat Transfer
- 5.14 Pressure Drop
- 5.15 Pressure Drop and Nusselt Number for the Porous Layer at Core of Channel
- Chapter 6 Conclusion and Future Works