Injection in DPM
 

Dear Friends: when i wanna define an injection of droplets; fluent need "velocity" and "mass flow rate". I think, when i have droplet properties and its velocity,mass flow rate is determined.I mean only "velocity" or "mass flow rate" must be specified as input. Is it true? regards masood

Re: Injection in DPM
 

You have to define velocity, mass flow rate and the co-ordinates from where you want to inject fuel.

Re: Injection in DPM
 

Dear MANOJKUMAR:

Thanks for reply,but i said that i think only "velocity" or "mass flow rate" is need for injection.because:

mass flow rate= density*velocity*cross sectional area

i mean when i have "velocity" no need to define "mass flow rate".

is it true?

regards

Re: Injection in DPM
 

No because with the mass flow rate, you couldn't know the direction of the flow.

So you need: - the mass flow rate, - velocity in x,y,z cooridantes, - diameter of particules

Re: Injection in DPM
 

No u must give the direction of the particle means u have to define co-ordinate and mass flow rate, and all thing which given in tha properties and also give the no of tries in the next steps. MANOJKUMAR