I am trying to simulate diesel spray injection in constant volume chamber. I am using 2D axi-symmetric model with DPM. I understand from atomizer model theory that injection pressure is essential to calculate injection velocity. But I am not able to specify the same.Additional information about defining conditions of continuous phase in DPM will also be helpful. Thanks in advance.
Though i am not clear about your question, i will try my best to answer your question. For only liquid injection from the plain orifice atomizer using DPM, just change the pressure from the injection properties. You don't need to change the pressure in boundary condition.
Dear Rashed Thanks for your answer. But there is no option to define upstream injection pressure in injection properties panel. My concern is whether this can be updated in some other way?
Unfortunately , There is no other way to input the pressure in plain orifice atomizer in fluent as it seems. My suggestions is that ,try to change the flow rate by using pressure drop equation ( Bernoulli Equation) and check it. Otherwise you have to move on to Pressure swirl atomizer.
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