CFD analysis to understand the flow behaviour of a single stage transonic Axial flow compressor

Shobhavathy, MT and Premakara , Hanoca (2013) CFD analysis to understand the flow behaviour of a single stage transonic Axial flow compressor. In: Proceedings of ASME GTINDIA 2013 Conference , 5-6 December 2013, Bangalore.

[img] PDF
GTINDIA2013-3592.pdf - Published Version

Download (2MB)

Abstract

This paper comprises the Computational Fluid Dynamic (CFD) analysis to investigate the flow behaviour of a high speed single stage transonic axial flow compressor. Steady state analyses were carried out at design and part speed conditions to obtain the overall performance map using commercial CFD software ANSYS FLUENT. Radial distribution of flow parameters were obtained at 90% of design speed for the choked flow and near stall flow conditions. The predicted data were validated against available experimental results. The end wall flow fields were studied with the help of velocity vector plots and Mach number contours at peak efficiency and near stall flow conditions at 60% and 100% design speeds. This study exhibited the nature of a transonic compressor, having strong interaction between the rotor passage shock and the tip leakage high blockage in the rotor blade passage. The influence of this interaction extends around 15% of the blade outer span at design speed and in the absence of blade passage shock at 60% design speed, the influence of tip leakage flow observed was around 8%.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: CFD Analysis, CFD Software ANSYS fluent
Subjects: ASTRONAUTICS > Spacecraft Propulsion & Power
Depositing User: Ms Indrani V
Date Deposited: 24 Dec 2013 09:39
Last Modified: 24 Dec 2013 09:39
URI: http://nal-ir.nal.res.in/id/eprint/11878

Actions (login required)

View Item View Item