CFD investigation of a switched vortex valve for cooling air flow modulation in aeroengine
thesisposted on 27.01.2016 by Bharat Koli
In order to distinguish essays and pre-prints from academic theses, we have a separate category. These are often much longer text based documents than a paper.
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.
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.
- Aeronautical, Automotive, Chemical and Materials Engineering
- Aeronautical and Automotive Engineering