[Jasper Z]

Dear all,

I am recently struggling with the air jet into stagnant water, as you can see in the attachment, the air phase trajectory divided from the jet centerline, which is not realistic. I am using twoPhaseEulerFoam, the lift force coefficient is set to be 0.5 (I saw many literature using this value).

Is there anybody facing the same problem or can you give me a suggestion? Very appreciate.

[mixkats]

Not sure if it will help, but check this paper:

https://www.sciencedirect.com/science/article/pii/S2210983815001364

In section 4 mentions the set up, which once solved a similar issue of mine (air, water, twoPhaseEulerFoam)

[Jasper Z]

Originally Posted by mixkats

Not sure if it will help, but check this paper:

https://www.sciencedirect.com/science/article/pii/S2210983815001364

In section 4 mentions the set up, which once solved a similar issue of mine (air, water, twoPhaseEulerFoam)

Dear Katsantonis,

Thanks for the paper, I checked the paper but the setup is more or less the same, I used the fvScheme and fvSolution from the bubble column tutorial. I think the main reason is the lift force. In this paper, Tomiyama lift coefficient is used, but when I use the same coefficient, the result is similar.

I have also tried Cl=0.1, the result seems better, but the lateral distribution is thinner than realistic (left figure).

Furthermore, I tried the classic Deen Column using mixture rans model, the distribution is also unrealistic, as you can see in the right figure at 10 s. The lift coefficient is 0.25 in this case.

Do you have any suggestion about this phenomenon?

[Jasper Z]

This problem has not been solved yet, looking forward to any suggestions1