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- Ben Thornber, Andrew Mosedale, Dimitris Drikakis, David Youngs, Robin J. R. Williams
- J. Comput. Physics
- 2008

- Ben Thornber, Andrew Mosedale, Dimitris Drikakis
- J. Comput. Physics
- 2007

- Ben Thornber, Dimitris Drikakis, Robin J. R. Williams, David Youngs
- J. Comput. Physics
- 2008

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)

- D Drikakis, M Hahn, A Mosedale, B Thornber
- Philosophical transactions. Series A…
- 2009

Restrictions on computing power make direct numerical simulation too expensive for complex flows; thus, the development of accurate large eddy simulation (LES) methods, which are industrially applicable and efficient, is required. This paper reviews recent findings about the leading order dissipation rate associated with high-resolution methods and… (More)

- Ben Thornber, R. W. Bilger, A. R. Masri, E. R. Hawkes
- J. Comput. Physics
- 2011

- J E Polk, C M Marrese-Reading, B Thornber, L Dang, L K Johnson, I Katz
- The Review of scientific instruments
- 2007

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)

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)

- B Walchli, B Thornber
- Physical review. E
- 2017

The Reynolds number effects on the nonlinear growth rates of the Richtmyer-Meshkov instability are investigated using two-dimensional numerical simulations. A decrease in Reynolds number gives an increased time to reach nonlinear saturation, with Reynolds number effects only significant in the range Re<256. Within this range there is a sharp change in… (More)

- Ben Thornber, Ye Zhou
- Physical review. E, Statistical, nonlinear, and…
- 2012

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)

- B. Thornber, E. Hawkes
- 2011

The Conditional Moment Closure (CMC) model provides a means of closing the subgrid terms for the reaction rates through the assumption that departures of the mean filtered reaction rate (conditional on a mixture fraction or progress variable) are small. Turbulentchemistry interaction is incorporated through a conditional scalar dissipation. To date, all… (More)

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