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September 20, 2018, 21:57 |
Turbine analysis of the turbocharger
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#1 |
New Member
seunghyeon, yun
Join Date: Apr 2018
Posts: 18
Rep Power: 8 |
Hello guys.
I work CFD analysis by turbine and turbine housing of the turbocharger(twin scroll, Inlet scroll of turbine housing is two.). Final purpose is verify thermal distribution on the Backplate which is backside radial turbine. Here, I have boundary conditions from engine by Inlet temperature, Inlet mass flow, Outlet pressure and turbine speed. This is: Inlet Temperature: 922.6 deg.C Inlet Mass Flow: 0.27 kg/s Outlet Pressure: 188.8 kPa Turbine rotational speed: 160,000 rpm Here, I set mass flow 0.135 kg/s and 922.6 deg.C each inlet ( 0.135 + 0.135 = 0.27 ), rotation speed: 160,000 rpm. But, To you guys know, it can't set total pressure at outlet. So I set 0.27 kg/s mass flow. But.... I gave the message "Overflow" from CFX solver.... Mach number is expressed very high in solver message... How to set boundary condition by this condition? |
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