A. dolatabadi, B. Samareh, Concordia University, Montreal, QC, Canada
The effect of particle-gas and particle-particle interactions can not be neglected for a typical operating condition in cold spray process. This paper addresses the effect of presence of dense particulate flow on the supersonic gas flow formed inside and outside a cold spray nozzle. An Eulerian-Eulerian approach for gas-particle flow is used for modeling particles in the dense flow. It is found that when the volume fraction of the particles is increased, the turbulence of the gas phase will be augmented by the motion of the particles. The shock-particle interaction is demonstrated for different volume fractions. Particle velocity distribution and the effect of particle number density on the gas flow are also examined.
Summary: This work demonstrates the effect of particle-gas and particle-particle interaction in a dense cold spray flow, using the Eulerain approach.
