Computational prediction of local distorted flow in turbocharger
This paper presents numerical study by performing three-dimensional Navier-Stokes solution for mixture gas flow in a typical industrial turbocharger configuration. The primary focuses are the ow distortions and behaviours in the proximity of the nozzle vanes. Numerical predictions reveal local ow distortions, shown by a considerable total pressure drop of about 7.5％. The possible reason for this is probably due to the in uence of the upstream guide vane wake ow. At both design and off-design conditions considered in this study, the ow near the nozzle vanes has noticeable inhomogeneous in the circumferential direction. However, both local flow distortions and inhomogeneous in annulus are gradually reduced and the ow recovers to near uniform at the nozzle exit plane. Thus the predicted ow distortions have negligible effects on downstream turbine blades.
Numerical prediction distorted flow turbocharger
J.Yao Y.F.Yao P.J.Manson T.Zhang F.J.G.Heyes P.E.Roach
Faculty of Engineering, Kingston University Roehampton Vale, Friars Avenue, London SW15 3DW Siemens Industrial Turbomachinery Ltd.Waterside South, Lincoln LN5 7FD
国际会议
The Fifth International Conference on Fluid Mechanics(第五届国际流体力学会议)
上海
英文
2007-08-15（万方平台首次上网日期，不代表论文的发表时间）