CFD ANALYSIS FOR CAVITATION OF A CENTRIFUGAL PUMP IMPELLER
Author(s):
Vikash Siddhu, Pooja Kaushal, Swati Sharma
Keywords:
cavitation, CFD, turbo machine, centrifugal pumps impeller.
Abstract
Centrifugal Pumps are the most common appliances used in various industries, agriculture and domestic application& thus its impeller design thus required a very precise understanding of the internal flow at rated and part load operating conditions. Design and development of turbo machines like centrifugal pump is highly complex due to turbulence flow structure, unsteadiness and cavitation inside the pump. The pump suffers with loss of efficiency, erosion of material, degradation of its useful life caused by cavitation. The Phenomenon of cavitation can be described as the vapor bubbles formation in an originally liquid flow, this change of phase is carried through at constant temperature and local drop pressure, generated by flow conditions. Turbo machines like centrifugal pumps suffer with loss of performance, degradation of its useful life caused by the cavitation. Under the analytical point of view the cavitation phenomenon shows very complex, bringing great physical and numerical modeling challenges. The use of tools like CFD (Computational Fluid Dynamics) has been widely used in way to get better results in projects and developments on the dynamics of fluids. With the use of CFD tools it is possible to have a forecast about the cavitation places looking for the pressure field, since the cavitation has a direct relation with the vapor pressure at the flow fluid temperature, becoming possible to add improvements in the project of the equipment in order to prevent or to minimize the phenomenon, without the use of experimental methods that in the most cases showing high cost. The main objective of this work is to present the cavitation modeling in a centrifugal pump impeller using CFD tool.
Article Details
Unique Paper ID: 148369

Publication Volume & Issue: Volume 6, Issue 1

Page(s): 458 - 465
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