Solver for simultaneously solving Primary and Secondary BreakUp in Atomization

kk415 · April 7, 2019, 06:18

Hello Everyone,

I am using OpenFoam 4.1 version and I want to know which solver is suitable for my case.

I want to solve for two incompressible, immiscible, isothermal fluids with high density ratio. The liquid and gas phase are to be treated in eulerian-eulerian manner but if the break up drop become very small (i.e. if it is in secondary breakup regime) Depending on the volume of the drop it is to be treated in lagrangian manner.

Is there any existing solver for such cases ?

as020002 · July 14, 2019, 22:26

Hi kk415,

As far as I know if you want to simulate droplet breakup phenomenon, Eulerian-Lagrangian method is the only choice, which you can refer to sprayFoam solver.

In addition, I am also looking for a solver for investigating primary and secondary breakup, since the the breakup model in sprayFoam is defined as secondary breakup while atomization model is primary breakup.

If you have more information or question, feel free to propose it and we may have a further discussion

.

Regard,

kk415 · July 15, 2019, 01:54

Hello cheung

As far as I know, sprayFoam uses an inlet condition for initialization of droplets. what if the location of the droplets is not known a priority. The generation of the parcels should be from the conversion of Eulerian drops to lagrangian drops. Fluent does this in its new version.

as020002 · July 15, 2019, 02:11

Hi Krishna,

I checked the sprayCloudProperties, I presume the parcels(groups of droplet) are injected as source term instead of using inlet condition? Since I am able to impose the droplet injection with arbitrary location in the computational domain

I am also interested in doing eulerian-eulerian method either, would you mind if you tell me in which version of fluent and what solver that i can realize it?

Btw, I found a journal here https://www.sciencedirect.com/scienc...01932215300744 is it what you desire to do?

kk415 · July 15, 2019, 04:10

Hi cheung

Check out this youtube video link which is the coupled VOF-DPM modelling in Fluent. I don't know at this moment which version of Fluent it is. But it shows exactly the methodology I am looking for.
https://www.youtube.com/watch?v=S0MUu2svgQ8

April 7, 2019, 06:18	Solver for simultaneously solving Primary and Secondary BreakUp in Atomization	#1
kk415 Senior Member krishna kant Join Date: Feb 2016 Location: Hyderabad, India Posts: 133 Rep Power: 10	Hello Everyone, I am using OpenFoam 4.1 version and I want to know which solver is suitable for my case. I want to solve for two incompressible, immiscible, isothermal fluids with high density ratio. The liquid and gas phase are to be treated in eulerian-eulerian manner but if the break up drop become very small (i.e. if it is in secondary breakup regime) Depending on the volume of the drop it is to be treated in lagrangian manner. Is there any existing solver for such cases ?

July 14, 2019, 22:26		#2
as020002 New Member CHEUNG WING KI Join Date: May 2017 Posts: 16 Rep Power: 8	Hi kk415, As far as I know if you want to simulate droplet breakup phenomenon, Eulerian-Lagrangian method is the only choice, which you can refer to sprayFoam solver. In addition, I am also looking for a solver for investigating primary and secondary breakup, since the the breakup model in sprayFoam is defined as secondary breakup while atomization model is primary breakup. If you have more information or question, feel free to propose it and we may have a further discussion. Regard,

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July 15, 2019, 01:54		#3
kk415 Senior Member krishna kant Join Date: Feb 2016 Location: Hyderabad, India Posts: 133 Rep Power: 10	Hello cheung As far as I know, sprayFoam uses an inlet condition for initialization of droplets. what if the location of the droplets is not known a priority. The generation of the parcels should be from the conversion of Eulerian drops to lagrangian drops. Fluent does this in its new version.

July 15, 2019, 02:11		#4
as020002 New Member CHEUNG WING KI Join Date: May 2017 Posts: 16 Rep Power: 8	Hi Krishna, I checked the sprayCloudProperties, I presume the parcels(groups of droplet) are injected as source term instead of using inlet condition? Since I am able to impose the droplet injection with arbitrary location in the computational domain I am also interested in doing eulerian-eulerian method either, would you mind if you tell me in which version of fluent and what solver that i can realize it? Btw, I found a journal here https://www.sciencedirect.com/scienc...01932215300744 is it what you desire to do?

July 15, 2019, 04:10		#5
kk415 Senior Member krishna kant Join Date: Feb 2016 Location: Hyderabad, India Posts: 133 Rep Power: 10	Hi cheung Check out this youtube video link which is the coupled VOF-DPM modelling in Fluent. I don't know at this moment which version of Fluent it is. But it shows exactly the methodology I am looking for. https://www.youtube.com/watch?v=S0MUu2svgQ8