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Dr James Tyacke
Senior Lecturer in Aerospace Engineering (Aerodynamics)

Research area(s)

I am currently focused on Urban Air Mobility Vehicle and Geothermal Energy.  I have recently investigated installed jet engine aeroacoustics using LES, solving challenges such as the use of the Ffowcs Williams-Hawkings method for complex geometry installed ultra-high bypass ratio jets under flight conditions. Previously I have pioneered engine-airframe coupling where an engine with bypass duct internal geometry generates resolved turbulence and is coupled to a jet-pylon-wing-flap geometry. To reveal noise generation mechanisms I am developing parallel analytical tools for 3D unsteady datasets.Previously I investigated LES of turbine zones. Flows studied included internal cooling, labyrinth seals and LPT/HPT blades. This investigation defined where LES is suitable and affordable relative to rig testing. It also provided a flow categorisation and framework for performing LES in industry, identifying future challenges.During my PhD, I studied conjugate heat transfer for an array of heated cubes and convective heat transfer within ribbed ducts and within a large electronics system enclosure. For these I tested a wide range of linear and non-linear RANS models, linear and mixed non-linear LES sub-grid scale models, hybrid LES-RANS and high order central and upwind spatial discretisations.

Research Interests

My interests lie in tackling challenging (often) complex geometry flows using LES and HPC and the use of hybrid LES-RANS to reduce computational cost. Wider research includes solver technology, utilising both second and higher order numerical methods to enable selective application of the best tools for industrial use and to understand detailed flow physics. Detailed datasets can then also be exploited to improve lower order design modelling.

Research links

Co-author network

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