Jun 18, 2003 #1 Chinsoowei Mechanical Jun 18, 2003 3 I need to find out the flowrate of compressed air for air nozzle. Anyone knows the formula to calculate the flowrate?
I need to find out the flowrate of compressed air for air nozzle. Anyone knows the formula to calculate the flowrate?
Jun 18, 2003 #2 Haf Mechanical Nov 6, 2001 176 There are several formulae. Some are more/less convenient depending on the data you have handy. Here is one: mass flow rate = P*A*M*(gamma/(R*T))^0.5 where P is static pressure A is area M is mach number gamma is ratio of specific heats (1.4 for air) R is gas constant T is static temperature Make sure you use consistent units and make sure that P, A, M, and T are values from the same cross section of the flow. If your flow is choked, the formula can be simplified. Haf Upvote 0 Downvote
There are several formulae. Some are more/less convenient depending on the data you have handy. Here is one: mass flow rate = P*A*M*(gamma/(R*T))^0.5 where P is static pressure A is area M is mach number gamma is ratio of specific heats (1.4 for air) R is gas constant T is static temperature Make sure you use consistent units and make sure that P, A, M, and T are values from the same cross section of the flow. If your flow is choked, the formula can be simplified. Haf
Jun 19, 2003 #3 patrickraj Chemical Apr 5, 2003 87 Give temp,Press,linesize and fittings.I give you flow and also whether the fluid is chocked or not. Upvote 0 Downvote
