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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/20146

Title: CFD investigation of a switched vortex valve for cooling air flow modulation in aeroengine
Authors: Koli, Bharat R.
Issue Date: 2015
Publisher: © Bharat Ramesh Koli
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.
Description: A thesis submitted in fulfilment of the requirements for the degree of Doctor of Philosophy in the Thermo-Fluids Systems UTC Department of Mechanical Engineering Sciences University of Surrey
Sponsor: This research work has been funded by the Rolls-Royce plc. and the Engineering and Physical Sciences Research Council of the United Kingdom through the University of Surrey Postgraduate Studentship award.
URI: https://dspace.lboro.ac.uk/2134/20146
Appears in Collections:Published Theses (Aeronautical and Automotive Engineering)

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