Dr Kathy Simmons is a member of the Gas Turbine and Transmissions Research Centre (G2TRC).
Computational Fluid Dynamics
Throughout my industry and university research career I have worked on projects where CFD has been applied to enhance understanding of industrially relevant flow situations. My current primary research activity is linked to aerospace transmissions where, through the University Technology Centre in Gas Turbine Transmission Systems, I have supervised a number of projects that have enhanced the ability of engineers to model the two-phase flow within aeroengine bearing chambers and gearboxes. Many of these projects have applied commercial CFD packages, primarily Fluent and CFX and some inhouse code for specialist applications (thin film motion within bearing chambers, droplet impact on thin films) have been developed.
Over my career I have applied a number of experimental techniques, both conventional and non-instrusive optical methods. When in industry I was competent with hot wire anemometry although I have not had much opportunity to apply this technique since. During my PhD I set up and used in-house PIV systems, using particle tracking methods to look at particulate deposition on ceramic candle filters. PIV was also used in a standalone study on the flow inside a car and its impact on driver/passenger comfort. I am also familiar with LDA although I have not used this technique recently.
In terms of engineering applications, my current research is all aeroengine focussed, primarily on bearing chambers (two-phase highly rotating flow, film droplet and jet interactions etc) and gear windage (mostly the spiral bevel gear of an aeroengine internal gearbox, but some spur gear work too).
Thermofluids, application of CFD to aeroengine oil transmission systems, particularly highly rotating single and two-phase flow, porous media flow, film and droplet flow, industrial CFD applications,… read more
Thermofluids, application of CFD to aeroengine oil transmission systems, particularly highly rotating single and two-phase flow, porous media flow, film and droplet flow, industrial CFD applications, PIV
Vortex shedding, fluidic oscillators
Wind energy, alternative energy, appropriate technology