{"id":5866,"date":"2010-08-06T09:05:52","date_gmt":"2010-08-06T13:05:52","guid":{"rendered":"https:\/\/spray-sensors.shany.ca\/theoretical-and-experimental-particle-velocity-in-cold-spray\/"},"modified":"2024-04-17T08:43:59","modified_gmt":"2024-04-17T12:43:59","slug":"theoretical-and-experimental-particle-velocity-in-cold-spray","status":"publish","type":"post","link":"https:\/\/spraysensors.tecnar.com\/fr\/theoretical-and-experimental-particle-velocity-in-cold-spray\/","title":{"rendered":"Theoretical and Experimental Particle Velocity in Cold Spray"},"content":{"rendered":"

In an effort to corroborate theoretical and experimental techniques used for cold spray particle velocity analysis, two theoretical and one experimental methods were used to analyze the operation of a nozzle accelerating aluminum particles in nitrogen gas. Two-dimensional (2D) axi-symmetric computations of the flow through the nozzle were performed using the Reynolds averaged Navier-Stokes code in a computational fluid dynamics platform. 1D, isentropic, gas-dynamic equations were solved for the same nozzle geometry and initial conditions. Finally, the velocities of particles exiting a nozzle of the same geometry and operated at the same initial conditions were measured by a dual-slit velocimeter. Exit plume particle velocities as determined by the three methods compared reasonably well, and differences could be attributed to frictional and particle distribution effects.<\/p>\n

Link to publication<\/a><\/p>\n

Key words: aluminum, CFD, modeling, nozzle, velocity measurement<\/p>\n

Originally published at Journal of Thermal Spray Technology (Volume 20, pages 425\u2013431, 2011)
\nBy Victor K. Champagne, Dennis J. Helfritch, Surya P G. Dinavahi, Phillip F. Leyman <\/small><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

In an effort to corroborate theoretical and experimental techniques used for cold spray particle velocity analysis, two theoretical and one […]<\/p>\n

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