refrenced pressure and refrenced temperature in Exit Corrected Mass Flow rate -- CFD Online Discussion Forums

November 3, 2016, 03:29	refrenced pressure and refrenced temperature in Exit Corrected Mass Flow rate	#1
behrouz Member behrouz Join Date: Mar 2015 Posts: 34 Rep Power: 11	hi to all i try to simulate centrifugal compressor and achive to speedline Pin=14 bar Tin=373 K in cfx documention suggest that use ECMF for outlet bounadry condition to comput speedline for machin once i set outlet mass flow rate and outlet condition calculated as below Pt out=26 bar T out=423 K but when i use ECMF solution is quite diffrent and mach number increase in each time step and solver stop with 'over flow' error. how it possible?? Tref and Pref in ECMF should be defult value or i should change it for my purpose??? once i set Tre and Pref equal to Tout and Pt out and seems it going right. tnx

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