June 28, 2019 at 7:03 amkedy4ectSubscriber
I am currently working on a liquid fuel spray jet. The model that I am using to create the spray jet is the DPM model. The figure below shows an axis-symmetry geometry of the combustion chamber and the liquid fuel is injected at point (0,0) which is the centre axis of the spray jet.
However, by using the same DPM settings, when the fuel is being injected at some distance above the axis, the spray jet does not developed as the previously one. The picture below shows the spray injected at some distance above from the axis. Can anyone help me with this?
Thanks a lot..
July 1, 2019 at 4:10 pmRobAnsys Employee
Think about the model: it's axi-symmetric. If I add an inlet at the centre and then rotate to 360 degrees what shape do I get? Now do the same for the jet at a different position, what shape will that be if rotated by 360 degrees?
July 1, 2019 at 4:20 pmkedy4ectSubscriberHi..
Thanks for the reply. Yeah, I know the first picture is an axis-symmetry spray jet. It will eventually form a spray cone at 360 degrees.
However, my concern is to create a spray jet that is sprayed at an angle into the computational domain. I have tried changing the 2D plane from axisymmetric to planar but the spray jet is still not developing.
July 2, 2019 at 9:33 amRobAnsys Employee
Think what you're defining: in the case where the jet is off centre you're modelling an annular slot: why would you expect the same jet shape?
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