Comparative CFD Studies on Jet Impingement Cooling Using Water and Water-Al2O3 Nanofluid as Coolants
N. K. Kund

N. K. Kund, Department of Production Engineering, Veer Surendra Sai University of Technology, Burla India.
Manuscript received on 01 May 2019 | Revised Manuscript received on 15 May 2019 | Manuscript published on 30 May 2019 | PP: 545-548 | Volume-8 Issue-7, May 2019 | Retrieval Number: G5187058719/19©BEIESP
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Abstract: The present study involves numerical investigations on jet impingement cooling with the water-Al2O3 nanofluid as coolant. A series of numerical simulations along with the CFD studies are carried out using ANSYS Fluent software. The appropriate governing transport equations of continuity, momentum and energy relating to the forced convection are solved to predict the velocity, temperature and the pressure fields. The hydrodynamic modelling involves the inertia, viscous and the pressure forces concerning the velocity and pressure. However, the thermal modelling relates to the convection and diffusion concerning only the temperature. Normally, the target plate cooling also involves the identified model parameters such as the jet velocity, nozzle diameter and the nozzle to heated target plate distance. The numerical simulations are performed with the jet velocity of 60 m/s, nozzle diameter of 2 mm and the nozzle to heated target plate distance of 5 mm so as to predict the flow behaviors. As expected, the pressure slowly decreases and the velocity together with the temperature gradually increases along the radially outward direction over the heated target plate from the stagnation point. In addition, the numerical simulations are also carried out only with the water in order to compare the cooling behavior with the water-Al2O3 nanofluid. Though, the trends of results are very similar for both water as well as water-Al2O3 nanofluid, however, the later one gives the superior cooling effect.
Keyword: CFD, Coolant, Jet Impingement, Temperature, Water-Al2O3 Nanofluid.
Scope of the Article: Water Supply and Drainage.