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Forum: FLUENT

February 26, 2020, 03:24

Replies: 11

CFD for falling film evaporator

Views: 4,085

Posted By vinerm

Ewf

Components mean material of the film. This has to be a pure material, e.g., water or oil. It cannot be a mixture of, say, two oils. In reality, it could be, but in Fluent it has to be modeled as a...

Forum: FLUENT

February 25, 2020, 16:12

Replies: 11

CFD for falling film evaporator

Views: 4,085

Posted By vinerm

Models

You can refer Fluent's Theory Guide or search online for the pressure limits for RPI and Critical Heat Flux models. CHF is extension of RPI wall boiling models.

If you have already written a UDF,...

Forum: FLUENT

February 25, 2020, 10:49

Replies: 11

CFD for falling film evaporator

Views: 4,085

Posted By vinerm

Suggestions

1. Pressure physically controls the phenomenon of phase change. Wall boiling models available in Fluent are meant only for high pressure phase change phenomena.

2. Lee model is thermal phase...

Forum: FLUENT

February 25, 2020, 02:56

Replies: 11

CFD for falling film evaporator

Views: 4,085

Posted By vinerm

Phenomenon

Whether the in-built models will work or not depends upon the phenomenon. If the pressure is high, then you can use wall boiling models. If the pressure is lesser than, say, 5 bar, then use thermal...

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