[farazarbabi]

Hi guys,

I am trying to follow the following paper and model a simple single bubble rising in a tank filled with water:

Hysing et al., "Quantitative benchmark computations of two-dimensional bubble dynamics", International Journal for Numerical Methods in Fluids, 2009.

The problem is that, I am not getting the same results as reported in this paper (I have modeled other test cases in other papers, but got the same problem). I attached my results for test case 2, and considered the parameters shown in the table below (nu for water and air were set to 0.01 and 0.1, respectively), but my bubble looks to move through a more viscous medium!
Does anybody have any idea where I might have made a mistake? I checked everything, and everything looks to be correct. Has anybody faced the same problem?

Thank you.