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Old   April 3, 2004, 21:32
Default Dynamic Meshes with Mixture Model
  #1
cfdtoy
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Hello

Has anyone successfully worked with a mixture multiphase model with dynamic meshes option !? Looks Like Fluent has some difficulty in computing Mixture Models with Dynamic Grids !

Any comments is well appreciated.

Thanks

CFDtoy
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Old   April 6, 2004, 02:14
Default Re: Dynamic Meshes with Mixture Model
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FJ
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Hi,

It's no problem even VOF model.

Mixture Model is not complex model in Fluent multiphase models. If it is Euler-Euler or Euler-Granular, it will be very tough calculation without MDM.

Thank you

FJ
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Old   April 13, 2004, 13:32
Default Re: Dynamic Meshes with Mixture Model
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CFDtoy
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Hi

FLuent is not compatible with VOF Model and Dynamic Grids !

Only Mixture and Discrete Models are..but looks like Fluent simulations have some intricate problems when predicting cavitation and other other phenomena associate d with multiphase flows.

thanks

CFDtoy
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Old   April 13, 2004, 21:16
Default Re: Dynamic Meshes with Mixture Model
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FJ
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Hi,

Yes, you are right. They said "Fluent is not compatible with VOF Model and Dynamic Grids".

But I don't think so from those equations. So I checked and the results were O.K.

All phases mass and volume became conservation and it good agree with the experimental results.

From those equations of Dynamic Grids, I understand that both VOF and Mixture model is no problem because their scalars transport based on the mixture velocity.

For Euler-Euler model ,I said it's O.K but I reconsider the equations again , It's maybe impossible.

Thank you

FJ
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