pressure-swirl atomizer spray simulation
Before i do this simulation, i have done some literate work and figured out how to do post analysis.
Because i want to do a simulation with time dependent BC, i chose to use CFX which has powerful CEL. But i have'n't found anybody do pressure-swirl atomizer spray simulation. So it is tricky. Up to now, i have some questions. For my simulation,PTM model with main-break up and second beak up model is the obvious option. And think the settings of the drag model/main-break up model/second beak up model is most important. But there are so much sub-settings that it seems impossible to do all the sensitivity analysis. And some of the model is so complex that i can't understand related settings? How can i effectively handle these settings. any advice ,thank you. |
What are you trying to get out of this model? I do not understand what sort of results you are looking for.
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It is a spray simulation.
I wanna to get SMD and the particle diameter distribution. |
Are you happy to get the droplet diameters from models like LISA?
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I did some literature work and will go on doing and find out how the models work and how other people have applied them. |
LISA is fine, I just wanted to know whether you wanted to use a breakup model (eg LISA) or if you wanted to directly model the breakup process with a free surface model. So in your case it seems the breakup model is what you want.
There is a lot of literature on LISA and other spray breakup models. They should give you some idea of how to drive them. |
Thank you.
I am clear about what model should i use, but not clear about the related sub settings. Next week is Mid-Autumn Festival and National Day, i have a week holiday. I will do some literature work at home before i come back to school:) |
Yes, the literature is always the starting point when you are doing a new simulation.
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