Thanks . . .
. . . CS, for your help. The publication that you identified appears to be specifically for liquid fluids . . . I need compressed air information. Do both liguids and gases follow the same physics?
I would like the formula that describes the reduction in pressure that results when a constant flow (cfm) of compressed air travels from a 3" diameter pipe through a bell reducer that provides a smooth transition to a 1.5" diameter pipe.
Also, in the same piping configuration as described...