Hi all, I am relatively new to compressor theory and I am looking for a good explanation as to how volumetric flow affects pressure ratio between the stages within a centrifugal compressor. My current knowledge is that as volumetric flow decreases, pressure ratio increases as stated in one of the books I am reading. This doesn't seem intuitive to me and I am looking for a good solid expatiation as to why this occurs. Any help would be greatly appreciated.
Cheers
Anthony