317 citations · 796 across the 31 of their papers we have counts for
4 papers · 1 filter
Validation of wall boundary conditions for simulating complex fluid flows via the Boltzmann equation: Momentum transport and skin friction
Tarik Dzanic, Freddie D. Witherden, Luigi Martinelli
The influence and validity of wall boundary conditions for non-equilibrium fluid flows described by the Boltzmann equation remains an open problem. The substantial computational co…
An efficient GPU-based h-adaptation framework via linear trees for the flux reconstruction method
Lai Wang, Freddie Witherden, Antony Jameson
In this paper, we develop the first entirely graphic processing unit (GPU) based h-adaptive flux reconstruction (FR) method with linear trees. The adaptive solver fully operates on…
On the anti-aliasing properties of entropy filtering for discontinuous spectral element approximations of under-resolved turbulent flows
Tarik Dzanic, Will Trojak, Freddie D. Witherden
For large Reynolds number flows, it is typically necessary to perform simulations that are under-resolved with respect to the underlying flow physics. For nodal discontinuous spect…
Positivity-preserving entropy filtering for the ideal magnetohydrodynamics equations
Tarik Dzanic, Freddie D. Witherden
In this work, we present a positivity-preserving adaptive filtering approach for discontinuous spectral element approximations of the ideal magnetohydrodynamics equations. This app…