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microchannel two phase flow with heat transfer

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Old   September 24, 2011, 04:28
Default microchannel two phase flow with heat transfer
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mkj
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Mrinal Jagirdar
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Hello,

I am new to CFD software. Which software (Fluent, CFX or Openfoam) would you recommend for simulation of two phase flow (water and steam) with heat transfer in microchannel? I am thinking of using the VOF or the Level-set approach.

Instead of software, do you think coding might be better? Any other approach that is worth considering?

Thanks in advance,
Sincerely,
MKJ
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Old   September 27, 2011, 11:17
Default Microscale HT
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At the micro level, capillary effects are much higher compared to convection scales. Use of VOF approach is preferred to get the bubble dynamics (injected into the channels) such as coagulation, stretching, deformation etc.

To simulate microchannel flows, your VOF scheme should be robust and very stable. Contact angle dynamics should also be included - to account for hydrophilic and phobic surfaces.

Flow3D, StarCCM, ANSYS - all can do this. No problem.

Writing your own code - well, why not use openFoam (as is) with its inbuilt VOF solver.

Read a lot of literature on the settings and BCs to impose.

Good luck.

/CFDtoy



Quote:
Originally Posted by mkj View Post
Hello,

I am new to CFD software. Which software (Fluent, CFX or Openfoam) would you recommend for simulation of two phase flow (water and steam) with heat transfer in microchannel? I am thinking of using the VOF or the Level-set approach.

Instead of software, do you think coding might be better? Any other approach that is worth considering?

Thanks in advance,
Sincerely,
MKJ
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Old   September 27, 2011, 21:49
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mkj
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Mrinal Jagirdar
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Thank you CFDtoy.

Regards,
Mrinal
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