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Mixture model for nanofluids

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Old   December 7, 2011, 05:17
Default Mixture model for nanofluids
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sima
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Hi,

I want to use mixture model for nanofluids in fluent but I want to change the the fluent defined viscosity and thermal conductivity of mixture. I want to use another formula for these properties.
How can I do this?

Thanks.
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Old   December 7, 2011, 06:15
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Quote:
Originally Posted by sima_udf View Post
Hi,

I want to use mixture model for nanofluids in fluent but I want to change the the fluent defined viscosity and thermal conductivity of mixture. I want to use another formula for these properties.
How can I do this?

Thanks.
Dear Sima,

I also did some investigations in nano-fluids field; as I know, multi-phase modelling in not proper for this purpose! you can easily use scalar transport equation. In order to define new variables, you can write simple UDFs which define these properties as functions of volume fraction.

Bests,
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