Recent content by foglght

and to add, I notice pressure drops across the pipe to a certain point in a linear fashion as volumetric airflow rate increases to a point and then becomes non-linear. How close are you to choked flow when it becomes non-linear?

There is a long pipe connected to the inlet of a pump (air). As the speed/flow of the pump increases, according to the mass flow equation (pVA) something has to give. At what point does the velocity begin to increase? Ambient conditions have an infinite cross sectional area. Density has to...