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Old   October 9, 2012, 02:02
Question Adaptive-time Stepping
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Maryam
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I am simulating a transient fluidized bed using Eulerian model in ANSYS FLUENT. According to the FLUENT User's Guide, "Adaptive time stepping cannot be used with Euler-Euler multiphase models."

but I saw several articles in which adaptive-time stepping algorithm has been used.

Using Constant time step would increase the computational cost since I have to use time step in order of E-4; otherwise, backflow would be seen at pressure-outlet boundary.

I wonder if there is any way to use adaptive-time stepping in Eulerian modeling.
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Old   October 9, 2012, 02:52
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Did people in these papers use Fluent? Maybe Ansys just did not implement this in Fluent...
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Old   October 9, 2012, 04:19
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Quote:
Originally Posted by RodriguezFatz View Post
Did people in these papers use Fluent? Maybe Ansys just did not implement this in Fluent...
Yes..they did
do u have any experience in fluidized bed simulation?
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Old   October 9, 2012, 04:20
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Unfortunately not, sorry.
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