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Old   June 25, 2013, 15:33
Default bubble column reactor
Join Date: Oct 2010
Location: Greensboro, NC, USA
Posts: 30
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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?
Hossein Amini
PhD student in Biochemical Engineering; Computational Science and Engineering department;
North Carolina Agricultural and Technical State University
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bubble column, reactor, two phase, velocity bc, vof

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