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| Abstract No.: |
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Scheduled at:
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Wednesday, May 04, 2022, Hall G1 11:10 AM
Modeling & Simulation I
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| Title: |
Modeling the suspension plasma spraying process using the large eddy
simulation
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| Authors: |
Elham Dalir* / University of Toronto, Canada
Ali Dolatabadi / University of Toronto, Canada
Javad Mostaghimi/ University of Toronto, Canada
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| Abstract: |
A three-dimensional unsteady magnetohydrodynamic model using the large eddy simulation (LES) is developed to simulate the turbulent plasma flow interacting with sprayed suspension droplets. Numerically modeling the turbulent plasma flow needs resolving a broad range of time and spatial scales/eddies affecting the flow behavior. Direct numerical simulation (DNS) can perfectly achieve such resolutions; however, it is an expensive and time-consuming process. In the current study, large eddy simulation is used to simulate the plasma flow behavior. LES model decreases the DNS computational cost by ignoring the smallest eddies. A two-way coupled Eulerian-Lagrangian method is applied to simulate the interaction between oscillating plasma flow and injected droplets. Droplets formed of yttria-stabilized zirconia (YSZ) solid particles suspended into ethanol are modeled using the multicomponent approach. The effect of droplets’ shape on the suspension plasma spraying (SPS) process is considered by using a dynamic drag law. The Kelvin-Helmholtz Rayleigh-Taylor (KHRT) breakup model is employed to simulate the droplets’ atomization.
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