Veeranagouda Patil ¹, H. R. Purushothama ¹, A. Manjunatha ², Vijay Kumar Mishra ²

Affiliations
1 Siddaganga Institute of Technology, Tumkur– 572103, IN
2 Contra Volts Infotech Pvt Ltd, Bangalore – 560016, Karnataka, IN

Abstract

In present paper, the performance of the marine propeller under non-cavitating condition is evaluated numerically using Computational Fluid Dynamics (CFD) approach. The first objective of this paper is to review physics involved in bubble dynamics and prediction and control of cavitation that have been suggested in the literature. These mechanisms are evaluated with observations that are available from marine propeller, where cavitation has leads to erosion damage on the marine propeller. A second objective is to review physical model and its characteristics for the prediction of the risk of cavitation erosion. A detailed phenomenon of cavitation and description of the process leading to tip vortex cavitation and its effects on marine propeller performance is hypothesized.

Keywords

Cavitations, Marine Propeller, Numerical Simulation, Steady State Analysis.

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K. L. Raviraj ¹, H. R. Purushothama ¹, A. Manjunatha ², Vijay Kumar Mishra ²

Affiliations
1 Siddaganga Institute of Technology, Tumkur - 572103, Karnataka, IN
2 Contra Volts Infotech Pvt. Ltd, Banglore - 560016, Karnataka, IN

Abstract

A review on thermal design and evaluation of cooling configuration of solar Photovoltaic panel by using Computational Fluid Dynamics (CFD) approach has been carried out. The temperature factor has major impact on PV panel efficiency in compare to other atmospheric factors and hence it has been studied. From literature survey it has been observed that, the module temperature of noon hours in a day will be high and cooling configurations has to be undertaken to cool PV panel temperature to the range of 30°C – 35°C (normal operating cell temperature) by using water as cooling medium since increasing temperature will results in reducing the efficiency by decreasing mobility of charge carriers.

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