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One way-coupling is legitimate here. See ANSYS documentation (16.2) for further details about the momentum exchange term.
Particle Phase:
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The suspended particles are considered as rigid spheres of same diameter d, and |
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density {latex}$\rho_p${latex}. |
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Newton's second law written for the particle i stipulates: |
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{latex}$m_p \frac{d \textbf{u}_p^i}{dt}${latex} where uip is the velocity of particle i, Fiex the forces exerted on it, and mp its mass. |
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In order to know accurately the hydrodynamic forces exerted on a particle one needs to resolve the flow to a scale significantly smaller than the particle diameter. This is computationnaly pro- hibitive. Instead, the hydrodynamic forces can be approximated roughly to be proportional to the drift velocity: |
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d u ip = v − u ip dt τp |
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where τp = XX is known as the particle response time. This equation needs to be solved for all particles present in the domain. This is done in Fluent via the module: Discrete phase ?. |
Expected Results
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Under Construction |
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