ComputerGuy |
February 2, 2011 20:56 |
In transient simulations, the time step is set, not calculated. A rule of thumb is that if your transient simulations are converging in 5-7 time steps (after the initial few, which may take slightly more), your time step is small enough.
Two phase (solid-liquid, solid-vapor) transport of granular solids can definitely be modeled in Fluent. The appropriate drag law is important, as is the characterization of the type (mono-disperse, poly-disperse) of particles you're flowing.
ComputerGuy
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