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CFD investigation of a switched vortex valve for cooling air flow modulation in aero-engine.

Koli, Bharat R. (2016) CFD investigation of a switched vortex valve for cooling air flow modulation in aero-engine. Doctoral thesis, University of Surrey.

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Abstract

This thesis is focused on understanding the flow features associated with a Switched Vortex Valve (SVV) using Computational Fluid Dynamics (CFD) methods for application in aero-engines. In this research the major emphasis was put on detailed flow analysis which was limited in experimental studies of SVVs. Considering the complex geometry of the SVV, for simplicity it was decided to divide the SVV device into two parts before studying the device as whole. These parts are the vortex chamber and flow switching device, which together constitute the SVV device. In this research, different turbulence models were evaluated which are mainly Reynolds average Navier-Stokes (RANS) and unsteady Reynolds average NavierStokes (URANS). The different turbulence models are the k- , SA and the RSM, and for a test case LES was also implemented.

Item Type: Thesis (Doctoral)
Subjects : Mechanical Engineering
Divisions : Theses
Authors :
AuthorsEmailORCID
Koli, Bharat R.UNSPECIFIEDUNSPECIFIED
Date : 30 June 2016
Funders : Engineering and Physical Sciences Research Council, Rolls-Royce plc
Contributors :
ContributionNameEmailORCID
Thesis supervisorChew, JohnUNSPECIFIEDUNSPECIFIED
Depositing User : Joanne Ratcliffe
Date Deposited : 12 Jul 2016 10:04
Last Modified : 12 Jul 2016 10:04
URI: http://epubs.surrey.ac.uk/id/eprint/811009

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