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Forum: FLUENT

March 8, 2016, 08:47

Replies: 7

Eulerian CFD simulation of rise of a spherical bubble in a continuous denser medium

Views: 1,203

Posted By nomi.tahir

A rising bubble with lower time step of 0.01 sec...

A rising bubble with lower time step of 0.01 sec is rising . Air is given at inlet with a velocity described by UDF and after a while when the bubble grows the bubble detaches but then soon after it...

Forum: FLUENT

March 8, 2016, 08:31

Replies: 7

Eulerian CFD simulation of rise of a spherical bubble in a continuous denser medium

Views: 1,203

Posted By nomi.tahir

I did it with explicit. I lowered the time step...

I did it with explicit. I lowered the time step as low as 2e-08 sec . But the bubble detachment didnt take place then . It took what 3 plus more days and the bubble growth was great but the bubble...

Forum: FLUENT

March 7, 2016, 15:57

Replies: 7

Eulerian CFD simulation of rise of a spherical bubble in a continuous denser medium

Views: 1,203

Posted By nomi.tahir

delta y is 0.038 m and delta x 0.0135 m . A...

delta y is 0.038 m and delta x 0.0135 m . A column of dimension X=0.5m and Y=1.5 m. Delta t is 0.01 sec. The scheme is implicit first order. What else you want ?

Forum: FLUENT

March 7, 2016, 07:47

Replies: 7

Eulerian CFD simulation of rise of a spherical bubble in a continuous denser medium

Views: 1,203

Posted By nomi.tahir

Eulerian CFD simulation of rise of a spherical bubble in a continuous denser medium

I tried solving the rise of a spherical bubble of air in continuous fluid ( water) using VOF method but it diverges . Although I found a tutorial dealing with ink drop falling in water which was...

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