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This paper addresses entropy generation and the corresponding dissipation of kinetic energy associated with high-resolution , shock-capturing (Godunov) methods. Analytical formulae are derived for the rate of increase of entropy given arbitrary jumps in primitive variables at a cell interface. It is demonstrated that for general continuously varying flows(More)
Simulations of three dimensional freely decaying homogeneous turbulence in a periodic cube have been used to examine in a detailed and quantitative manner the behaviour of a Large Eddy Simulation (LES) using implicit subgrid modelling. This paper details the form and behaviour of the implicit subgrid models for the Minmod and third order limiting methods at(More)
Life-limiting processes in hollow cathodes are determined largely by the temperature of the electron emitter. To support cathode life assessment, a noncontact temperature measurement technique which employs a stepper motor-driven fiber optic probe was developed. The probe is driven inside the hollow cathode and collects light radiated by the hot interior(More)
The variable-density spectral kinetic energy budget for the Richtmyer-Meshkov-induced turbulent mixing layer is presented using results from a 512{3} implicit large eddy simulation. The budget is presented at several time instants and as a function of the inhomogeneous direction as the layer transitions from the initial impulse through to self-similarity.(More)
A study of LES methods for simulation of ship airwakes. 46th American Institute of Aeronautics and Astronautics (AIAA) Fluid Dynamics Conference, Reston: American Institute of Aeronautics and Astronautics (AIAA). <a href=" (2016). Direct numerical simulation of transitional flow in a staggered tube bundle. Information]</a> Thornber, B. (2016). Impact of(More)
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