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#1 |
New Member
zain
Join Date: Jun 2014
Posts: 4
Rep Power: 12 ![]() |
hi ,
i'm trying to simulate airflow reactor using where the reactor are filled with water and air is injected in the almost middle of the column , here is my setting and problem description model>euler>implicit turbulence >k-epsilon>dispersed i tried many cases for interaction , also solvers but it keep giving me revers flow !! the boundary conditions for air ( dispersed phase ) u=0.6m/s (Secondary phase ) air volume fraction = 1 cause only air is injected no outlet in the system also i used marked to inject the air with (0 volume fraction in the cell zone) any suggestion plz what is the wrong with my setting ? which gives a reversed flow ?? |
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#2 |
Senior Member
Cees Haringa
Join Date: May 2013
Location: Delft
Posts: 607
Rep Power: 0 ![]() |
Dear Zain,
How exactly are you simulating a reactor that has an inlet but no outlets? That doesn't work, right? Where do you get the reversed flow? I guess for the air inlet your boundary condition is a velocity inlet - so I guess it is not there? Best, Cees |
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#3 |
New Member
zain
Join Date: Jun 2014
Posts: 4
Rep Power: 12 ![]() |
hi Cees
thanks for your reply the revers flow happened in few cells after entrance the reactor have only gas in and gas out and liquid are contained in the reactor i figure out my mistake it was with the turbulence model i used dispersed model for multiphase and that mean the turbulence will be in the secondary phase and partially in the primary phase while i should use mixture where the turbulence happen in both phases by this setting the effect of gas phase will make the liquid move in the right direction . thank you for your attention cheers ! |
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Tags |
euler, problem, reverse flow |
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