CFD Modeling of Turbulent Air Flow in Three Different Diffusers Used For Turbocharger Compressor
No Thumbnail Available
Date
2018-12-10
Journal Title
Journal ISSN
Volume Title
Publisher
University of Eloued جامعة الوادي
Abstract
This study is carried out to investigate by CFD
modeling the three dimensional turbulent air flow through the
centrifugal compressor used in turbocharger of diesel engines,
the full compressor stage with vaned and vaneless diffusers is
considered (i.e. From the impeller inlet to the volute outlet). A
great attention has been attributed to the effect of the diffuser
solidity. For this purpose, three diffusers have been considered
(vaneless diffuser, conventional vaned diffuser, and low solidity
vaned diffuser) in order to analyze their effect, especially on
the turbulence intensity distribution, on the pressure loss, and
on the compressor performance. To validate numerical model,
a comparison with a similar tested turbocharger is made in
case of vanless diffuser, and a good agreement is seen.
Description
International Symposium on Mechatronics and Renewable Energies El-Oued 10- 11 December 2018
Keywords
Centrifugal Compressor, Turbocharger, Turbulence, Compressible Flow