Interaction of solid particles with shock and expansions in supersonic flows is analyzed. In this analysis, a dense cloud of solid particulates is modeled by using a fully Eulerian approach. The dispersed flow and the gas flow were considered in the Eulerian frame whereby most of the physical aspects of the gas-particle flow can be incorporated. In addition to the momentum and energy exchanges in the form of source terms appearing in the governing equations, the two phases were strongly coupled by considering the volume fraction of the particulate phase in the equations. The simulation performed for a High Velocity Oxy-Fuel (HVOF) process under typical operating conditions in which the powder loading is high and the two-phase flow is not dilute near the injection port. The simulations showed large variations in the flow regime in the region that most of the particles exist. Unlike the results corresponding to the Lagrangian approach, the flow becomes subsonic near the centerline and the drag force decreases significantly since the relative Mach number is small. The validation experiments showed that the variation of flow regime by changing the relative Mach number could significantly change the particle drag force, and consequently process efficiency.
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ASME 2002 Joint U.S.-European Fluids Engineering Division Conference
July 14–18, 2002
Montreal, Quebec, Canada
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-3616-9
PROCEEDINGS PAPER
Interaction of Shock and Expansion Wave With Solid Particles in Supersonic Flows Available to Purchase
Ali Dolatabadi,
Ali Dolatabadi
University of Toronto, Toronto, ON, Canada
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Javad Mostaghimi,
Javad Mostaghimi
University of Toronto, Toronto, ON, Canada
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Valerian Pershin
Valerian Pershin
University of Toronto, Toronto, ON, Canada
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Ali Dolatabadi
University of Toronto, Toronto, ON, Canada
Javad Mostaghimi
University of Toronto, Toronto, ON, Canada
Valerian Pershin
University of Toronto, Toronto, ON, Canada
Paper No:
FEDSM2002-31223, pp. 399-407; 9 pages
Published Online:
February 24, 2009
Citation
Dolatabadi, A, Mostaghimi, J, & Pershin, V. "Interaction of Shock and Expansion Wave With Solid Particles in Supersonic Flows." Proceedings of the ASME 2002 Joint U.S.-European Fluids Engineering Division Conference. Volume 2: Symposia and General Papers, Parts A and B. Montreal, Quebec, Canada. July 14–18, 2002. pp. 399-407. ASME. https://doi.org/10.1115/FEDSM2002-31223
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