Influence of volute inflow inhomogeneity on the characteristic of variable radial inflow turbine

Shi Kai Xing, Chao Chen Ma*, Liao Ping Hu, Hang Yu Pan, Jian Bing Gao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Based on the characteristics of nonuniform volute circumferential flow, a full week turbocharger turbine stage calculation model was established. The model was compared with the experimental results to verify its validity of the simulation. Experimental data were used to determine the boundary conditions of three-dimensional viscous numerical calculations, focusing on the influence of volute inflow inhomogeneous on the internal flow field of variable radial inflow turbine. Calculation results show that the volute inflow inhomogeneity leads to the uneven features distribution of guide vanes and impeller internal circumferential flow. Inlet flow angle of the guide vanes shows a great change in circumferential distribution, and each blade of impeller load and flow circumferential distribute is not uniform. Individual blade loading mutation may cause the blade vibration, reducing the service life of the turbine.

Original languageEnglish
Pages (from-to)265-271
Number of pages7
JournalNeiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines)
Volume33
Issue number3
DOIs
Publication statusPublished - 25 May 2015

Keywords

  • Internal flow field
  • Numerical simulation
  • Radial turbine
  • Variable guide vanes turbine
  • Volute inflow inhomogeneity

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