@3d dave
"In choke flow the downstream pressure is the downstream pressure. Choked flow through an ideal orifice doesn't/can't affect downstream pressure."
Do you mean, that when the pressure is choked, the downstream pressure will be a constant not dependant on the upstream pressure as long...
Thanks for your reply! but i cant seem to find a calculator, that calculates det downstream pressure. i can find the massflow. can you point me in the direction of an equation?
sorry for all the questions!
Littleinch@
the upstream pressure to the first orifice is 300bar and the downstream of the second orifice is to atmosphere so 1 bar.
Can i assume, that the flow over both orifices will be choked?
and can you point me in the direction for the right equation for calculating the pressure...
thanks for the replys and sorry for the late answer.
I little clarification
@dave
Lets consider the first orifice. i have 300bar going in, I am assuming, that the flow will be choked giving me
P.crit=0.528*P.0 (for air)
Can i then say, that my pressure after the orifice will be...
Hi!
I have a system of piping going from a pressurized 80L cylinder with 300bar with a gas. In the system i have two orifices. First of I want to calculate the pressure and valocity of the gas after the first orifice, so I can calculate the flow of gas after the second orifice. I am not sure...
