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Pressure ratio (P_out/P_in) in critical flow is dependent on valve opening?
Hi, I am developing a solver for multiphase flow valve. I have checked the Tulsa model (Sachdeva1986) and Al-Safran model (Al-Safran2009), and I found the pressure ratio (y = P_out/P_in) for critical flow does not contain the valve opening parameter in both equations. Is it physically...- keunsoop
- Thread
- Replies: 0
- Forum: Valve engineering
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Pressure drop vs. Valve opening in Critical flow
Thank you very much for the answer. Either subcritical or critical flow, my model includes phase change - mass fraction is from the pressure and temperature measurement in three positions of valve: 1) valve inlet, 2) valve outlet, 3) downstream of valve when flow reattach the wall. Then can we...- keunsoop
- Post #3
- Forum: Valve engineering
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Pressure drop vs. Valve opening in Critical flow
Hi, I am struggling in modeling of multiphase flow valve in oil and gas production pipeline. I am using Hydro long model, and trying to find C_T value (Throttling coefficient) to be matched with the measured pressure drop. One interesting thing I found is for critical flow pressure drop...- keunsoop
- Thread
- Replies: 2
- Forum: Valve engineering
