CFD Simulation of Flow in an Abrasive Water Suspension Jet: The Effect of Inlet Operating Pressure and Volume Fraction on Skin Friction and Exit Kinetic Energy. (23rd September 2012)

• Record Type: Journal Article
• Authors: Deepak, D.; Anjaiah, D.; Karanth, K. Vasudeva; Sharma, N. Yagnesh
• Other Names: Adachi Koshi Academic Editor.
• Is Part Of: Advances in mechanical engineering. Volume 2012(2012)
• Publication Date: 2012-09-23
• Subjects: Mechanical engineering -- Periodicals; 621.05
• DOI: 10.1155/2012/186430
• Languages: English
• ISSNs: 1687-8132

Abstract

Abstract : Abrasive particles in the suspension mixture in an abrasive water suspension jet (AWSJ) machining causes acute skin friction effect thereby effectively changing the jet diameter due to wear, which in turn influences jet exit kinetic energy. This results in lowering the life of the jet for effective machining. In consideration of this aspect, the present work examines the effect of inlet pressure on skin friction coefficient and jet exit kinetic energy. It is inferred from the analysis that an increase in inlet pressure causes a significant increase in skin friction coefficient and also results in proportional increase in the exit kinetic energy of the jet. Further, it is revealed from the analysis that an increase volume fraction of abrasive (abrasive concentration) in water results in significant decrease in the skin friction coefficient and jet exit kinetic energy.