TAGGED: #fluent-#ansys, discrete-phase, dpm, particles, steady-state
March 29, 2023 at 8:51 amshadowfax7Subscriber
When injecting inert particles in a steady-state simulation, does it make sense to run a flow-only simulation first until it converges, then injection particles in an already converged flow? Or is this unnecessary and you can just inject particles from the start of the steady simulation? This would be without interaction.
March 29, 2023 at 12:35 pmRobAnsys Employee
It's common practice for one way coupling (ie not interacting) to run the model then post process the particles after the solver has converged. Have a look at the tutorials in Help.
March 29, 2023 at 12:45 pmshadowfax7Subscriber
Thanks for your response. Indeed, I run the model before post-processing, but I was wondering, during running of the model, whether you for example let the residuals drop around three orders of magnitude and then inject the particles or just inject them from the beginning.
March 29, 2023 at 1:14 pmRobAnsys Employee
It they're uncoupled then particles won't update during the run. The update is only when you display. With coupled (interacting) particles the default update is every 10 iterations for steady flows.
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