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Forum: Fluent Multiphase June 3, 2020, 07:26
Replies: 15
Views: 3,445
Posted By vinerm
Data at Points

Better is to use cell centered value and fetch only the primitive variables, i.e., velocity and density instead of fetching derived variables, such as, dynamic pressure. Calculate dynamic pressure...
Forum: Fluent Multiphase June 3, 2020, 06:22
Replies: 15
Views: 3,445
Posted By vinerm
Dynamic Pressure

Whether it is low volume fraction or high, the relation is always maintained because this is the equation used to calculate dynamic pressure. Fluent does not solve any conservation or other equation...
Forum: Fluent Multiphase June 3, 2020, 06:00
Replies: 15
Views: 3,445
Posted By vinerm
Fields

Velocity is a field, so are density and dynamic pressure. You cannot represent those using single values.
Forum: Fluent Multiphase June 3, 2020, 05:29
Replies: 15
Views: 3,445
Posted By vinerm
Measurement

By measurement I did not mean experiment rather the averaging procedure used. CFD does not give single values. User needs to average over boundary or cell zones. Since you mentioned integral values,...
Forum: Fluent Multiphase June 3, 2020, 04:54
Replies: 15
Views: 3,445
Posted By vinerm
Dynamic Pressure

Where are you measuring these values? Are these values averaged over some zone?

Dynamic pressure is not directly affected by volume fraction.
Forum: Fluent Multiphase June 2, 2020, 04:29
Replies: 15
Views: 3,445
Posted By vinerm
Eulerian Model

In your previous post you asked how these were calculated for VOF (Do note VOF is also an Eulerian model). As far as Euler-Euler model is concerned, there is no such requirement, however, if...
Forum: Fluent Multiphase May 29, 2020, 09:43
Replies: 15
Views: 3,445
Posted By vinerm
Properties in Multiphase Flow

Fluid properties are based on volume fractions. For any property \phi in a liquid-gas system, property used in conservation equation is \phi_{liq}\alpha_{liq} + \phi_{gas}(1-\alpha_{liq}), where...
Showing results 1 to 7 of 7

 
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