Investigation of the mixed flow turbine performance under inlet pulsating flow conditions

被引：16

作者：

Hamel, Mohammed ^{[1
]}

Abidat, Miloud ^{[1
]}

Litim, Sid Ali ^{[2
]}

机构：

[1] Univ Sci & Technol Oran Mohamed Boudiaf, Lab Mecan Appl, Fac Genie Mecan, Oran El Mnaouer 31000, Oran, Algeria

[2] Ecole Normale Super Enseignement Tech Oran, Oran, Algeria

来源：

COMPTES RENDUS MECANIQUE | 2012年 / 340卷 / 03期

关键词：

Computational fluid mechanics; Turbulence; Mixed flow turbine; Performance; Turbocharger; Efficiency; Pulsating flow; TURBOCHARGER TURBINE; STEADY;

D O I：

10.1016/j.crme.2012.01.004

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Turbochargers are widely used in Diesel engines as a means of increasing the output power. Most of them are fitted with radial or mixed flow turbines. In applications where high boost pressure is required, radial turbines are replaced by mixed flow turbines which can achieve a maximum efficiency at a lower value of blade speed to isentropic expansion velocity ratio than the usual 0.7 (for radial turbines). This study, performed with the ANSYS-CFX software, presents a numerical performance prediction of a mixed flow turbine under inlet pulsating flow conditions. In addition, the influence of the pulse frequency is studied and the numerical results are compared with those of a one-dimensional model and experimental data. (C) 2012 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.

引用

页码：165 / 176

页数：12

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