Pressure Drop Computed is Too Small
I am simulating high pressure (~3.5 MPa) vapour flow in a straight pipe of 12 m in Fluent. The known mass flow rate is 3 kg/s. The simulation was setup and however, the resulting pressure drop from inlet to outlet is less than 500 Pa. This pressure drop across the pipe seems way too small and incorrect. I wonder if anyone can shed some ideas on what could have been wrong. I checked the settings of the model and could not find any mistakes (as far as I can tell). Thanks.