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-   -   multicomponet flow vs.Homegeneous multiphase flow (http://www.cfd-online.com/Forums/main/12336-multicomponet-flow-vs-homegeneous-multiphase-flow.html)

klarke September 30, 2006 00:36

multicomponet flow vs.Homegeneous multiphase flow
 
hi,all

what's the difference between multicomponet flow and Homegeneous multiphase flow?

Junseok Kim October 1, 2006 23:28

Re: multicomponet flow vs.Homegeneous multiphase f
 
I guess you may want to know that, for example multicomponent - water and oil multiphase - water and vapor

chi October 2, 2006 08:13

Re: multicomponet flow vs.Homegeneous multiphase f
 
hi klarke,

I suppose you refer to homogeneous multi-component flow instead of homogeneous multiphase flow, and multi-phase flow instead of multicomponent flow. (correct me if i'm wrong).

Homogeneous multi-component flow is a type of flow we consider by assuming that all participating species making up the mixture are mixed at the molecular scale and they all share the same velocity and pressure, hence also temperature. When using this assumption, convection and diffusion are the main modes of mass transfer.

On the other hand, multi-phase flow is a more complex case, since the various species are mixed at larger scales and each phase has its own solution field.

hope that answers.

chi

Angen October 2, 2006 22:43

Re: multicomponet flow vs.Homegeneous multiphase f
 
In fact, water and oil can be either single-phase multicomponent or two-phase multicomponent (e.g. water with small oil droplets) depending on their mutual miscibility.

Angen


klarke October 7, 2006 20:10

Re: multicomponet flow vs.Homegeneous multiphase f
 
thanks,all

I really mean is that you can find multicomponent flow model and homogeneous multiphase flow model in cfx, so i 'd like to know what's difference and related examples

Angen October 10, 2006 22:10

Re: multicomponet flow vs.Homegeneous multiphase f
 
Ask CFX support or in CFX Forum.

Angen


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