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June 25, 2013, 16:33 |
bubble column reactor
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#1 |
Member
Hossein
Join Date: Oct 2010
Location: Greensboro, NC, USA
Posts: 30
Rep Power: 16 |
Dear all
I want to simulate a 2D bubble column reactor (10cm x 30cm). there is an inlet at the bottom (a sparger with a hole which its diameter is 1 cm) and a free surface on the top. I use velocity inlet for air inlet (0.1m/s), pressure outlet for the top, I use VOF and patch water in the 2 phase system (air-water). I think time step size (0.001s) and mesh size (1mm)are OK but the problem is that after some time steps (flow time around 0.04s), velocity distribution looks terrible as it increases around the inlet (it goes up to 1.1m/s). Does any have any suggestions to solve this problem? Thanks
__________________
Hossein Amini PhD student in Biochemical Engineering; Computational Science and Engineering department; North Carolina Agricultural and Technical State University |
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Tags |
bubble column, reactor, two phase, velocity bc, vof |
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