TY - GEN
T1 - The role of meridional geometry in aerodynamic design of centrifugal compressor
AU - Ito, Sasuga
AU - Furukawa, Masato
AU - Yamada, Kazutoyo
AU - Manabe, Kaito
AU - Oka, Nobuhito
AU - Tomita, Isao
AU - Hayashi, Yoshihiro
PY - 2018/1/1
Y1 - 2018/1/1
N2 - Higher aerodynamic performance of turbochargers has been demanded because of vehicle engine down-sizing. Centrifugal compressors for automotive turbochargers require higher efficiency and wider operating range. Meridional geometry of the centrifugal compressors is one of their design specifications and it drastically affects the aerodynamic performance of the compressors. In this study, we designed the meridional geometry by using the aerodynamic design method based on a meridional viscous flow analysis and investigated the relation between the meridional geometry and the aerodynamic performance by analyzing meridional viscous flow calculation results and three-dimensional RANS calculation results. As a result, the relation between the boundary layer development near the shroud and the mass flux at the trailing edge was found out according to the meridional viscous flow calculation results. In addition, the relation and the performance improvement were confirmed according to experimental results.
AB - Higher aerodynamic performance of turbochargers has been demanded because of vehicle engine down-sizing. Centrifugal compressors for automotive turbochargers require higher efficiency and wider operating range. Meridional geometry of the centrifugal compressors is one of their design specifications and it drastically affects the aerodynamic performance of the compressors. In this study, we designed the meridional geometry by using the aerodynamic design method based on a meridional viscous flow analysis and investigated the relation between the meridional geometry and the aerodynamic performance by analyzing meridional viscous flow calculation results and three-dimensional RANS calculation results. As a result, the relation between the boundary layer development near the shroud and the mass flux at the trailing edge was found out according to the meridional viscous flow calculation results. In addition, the relation and the performance improvement were confirmed according to experimental results.
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U2 - 10.1115/FEDSM2018-83398
DO - 10.1115/FEDSM2018-83398
M3 - Conference contribution
AN - SCOPUS:85056169914
T3 - American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM
BT - Fluid Machinery; Erosion, Slurry, Sedimentation; Experimental, Multiscale, and Numerical Methods for Multiphase Flows; Gas-Liquid, Gas-Solid, and Liquid-Solid Flows; Performance of Multiphase Flow Systems; Micro/Nano-Fluidics
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2018 5th Joint US-European Fluids Engineering Division Summer Meeting, FEDSM 2018
Y2 - 15 July 2018 through 20 July 2018
ER -