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-   -   modeling solids feeding to air flow (http://www.cfd-online.com/Forums/fluent/92423-modeling-solids-feeding-air-flow.html)

Angeline September 14, 2011 02:47

modeling solids feeding to air flow
 
Hi Guys,

My case is the gravity feeding of solids from a cylindrical container (Height ,h)to air flow inside a pipe. How can i model this in fluent. I want to find out the velocity profiles of the solids . What boundary conditions should I use. Initially the solids are at rest and when the valve is opened , solids fall due to gravity to gas flow.



Someone kindly help me.

Harpreet September 14, 2011 12:01

try using DPM model, and activate gravity in operting conditions along the direction of flow desired.

Angeline September 15, 2011 01:14

Thanks Harpreet for your reply. But what about the boundary conditions.what will be the initial velocity of solids.

Harpreet September 15, 2011 12:48

although i haven't tried, but i think if you could the unsteady case with initial velocity of solid particles set to zero, it should work. For the boundry conditions more description of your problem is required.


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