Numerical Simulation of Turbocharger Cooling for Diesel Engine

ZHAO Pihuan; JI Yi; YANG Jianwen; SHI Liyuan

doi:10.3969/j.issn.1001-2222.2018.04.017

Vehicle Engine ›› 2018, Vol. 0 ›› Issue (4) : 89-92. DOI: 10.3969/j.issn.1001-2222.2018.04.017

Numerical Simulation of Turbocharger Cooling for Diesel Engine

ZHAO Pihuan,JI Yi,YANG Jianwen,SHI Liyuan

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Abstract

The exhaust temperature of turbine inlet at rated point of diesel engine was 763 ℃ and the turbocharger was required to work reliably for a long time at this temperature. Considering the heat transfer of compressor and turbine flow field to the bearing body, the thermal fluidsolid coupling analysis was conducted with CFD software to obtain the temperature field of floating bearing and the temperature at the vortex end seal ring for the nonwatercooled and watercooled bearing body. Finally, the reliability of turbocharger could be evaluated and the accuracy of numerical simulation was verified through experiments, which provided the basis for further research on the cooling performance of turbocharger.

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/ mso-hansi-font-family: 宋体">turbocharger;floating bearing;water cooling;fluid / mso-hansi-font-family: 宋体">solid coupling;simulation

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ZHAO Pihuan,JI Yi,YANG Jianwen,SHI Liyuan. Numerical Simulation of Turbocharger Cooling for Diesel Engine[J]. Vehicle Engine. 2018, 0(4): 89-92 https://doi.org/10.3969/j.issn.1001-2222.2018.04.017