A lecturer from the Faculty of Engineering/Mechanical Engineering Department participates in the membership of the doctoral discussion committee at Gazi University in Turkey

Asst. Prof. Dr. Ali Hussein Abdul Karim, lecturer at the Faculty of Engineering / Department of Mechanical Engineering, participated in the PhD discussion committee at Gazi University in Ankara, Turkey, for a study entitled: A practical and analytical study of the effect of the vortex collision jet on heat transfer from finned surfaces. The doctoral thesis submitted by the student included a study of the effects of different collision jets and different collision plates on heat transfer and flow field of electronic components when high and uniform heat transfer is required, through a practical and analytical study using the Ansys Fluint program.
The symmetric axial (circular) jet, the spiral collision jet at a small distance between the nozzle and the plate, and the integrated collision jets were studied. Although the factors vary from one study to another, they usually consist of the non-dimensional nozzle-plate distance, the total volumetric flow rate, the volumetric flow rate ratio, the nozzle geometry, the collision plate geometry, the spiral number, and the constrained and unconstrained jet cases. For the constrained and unconstrained jets, a circular jet impinging on a flat plate at a small nozzle-plate distance was studied. A constrained jet was created by adding a constraining plate parallel to the impact plate. Heat transfer and flow field at a small nozzle-plate distance were studied using the helical impact jet analytically only. The results showed that the heat transfer is affected by the height of the computational domain defined on the impact plate at a small nozzle-plate distance.