It was conducted on Tuesday, 17/9/2024, in the Dr. Munther Al-Droubi’s Hall of the Mechanical Engineering Department. The discussion of the master’s thesis of the student Dhafar Fadhil Ali, which is tagged:
“Thermal Characteristics of Jet Impingement Heat Transfer on a Flat Plate”
The discussion committee consisted of names listed below:
1- Asst. Prof. Dr. Luma Fadhil Ali (Chairman)
2- Asst. Prof. Dr Mahmoud Shakir Mahmoud (Member)
3- Asst. Prof. Dr. Ayser Muneer Flayh (Member)
4- Asst. Prof. Dr. Sajida Lafta Ghashim (Supervisor)
This thesis included studying the influence of the thickness of copper foam and pore density on heat transfer characteristics using ANSYS FLUENT package 2021R1. It used copper foams that have a porosity of 90%, thicknesses of 4, 8, 10, and 12 mm, and pore densities of 10, 20, 30, and 40 PPI for the numerical study, while copper foams with a thickness of 10 mm and pore densities of 10 and 40 PPI for the experimental study.
The numerical results show that the local Nusselt number (Nu) and average Nusselt numberof a copper foam flat surface are higher than a smooth flat surface, regardless of the pore density and thickness of the copper foam.
Experimental results show the local Nusselt number of a copper foam flat surface is better than a smooth flat surface.
For the comparison between the experimental results and the numerical results, it is observed that the maximum deviation of Nu and between the experimental and numerical results are 3.12% and 4.17%, respectively.
According to the numerical data of the present study and previous studies, the numerical solution approach comparison for Nu and agrees with previous results of a maximum difference between them of 11% and 12%, respectively.
The study concluded with recommendations including:
1- The possibility of improving the Nusselt number of the flat plate using copper foam.
2- Investigating the influence of slot-to-plate distance in the case of the smooth flat plate.
3- Discussing the effect of copper foam thickness on the distribution of jet velocity and total pressure distribution.
After the scientific discussion by the members of the discussion committee, the researcher received a rating of (excellence).
