57 citations · 192 across the 23 of their papers we have counts for
7 papers · 1 filter
Direct molecular gas dynamics simulations of re-entry vehicles via the Boltzmann equation
Tarik Dzanic, Luigi Martinelli
This work explores the feasibility of performing three-dimensional molecular gas dynamics simulations of hypersonic flows such as re-entry vehicles through directly solving the six…
DynAMO: Multi-agent reinforcement learning for dynamic anticipatory mesh optimization with applications to hyperbolic conservation laws
Tarik Dzanic, Ketan Mittal, Dohyun Kim +4
We introduce DynAMO, a reinforcement learning paradigm for Dynamic Anticipatory Mesh Optimization. Adaptive mesh refinement is an effective tool for optimizing computational cost a…
Positivity-preserving discontinuous spectral element methods for compressible multi-species flows
Will Trojak, Tarik Dzanic
We introduce a novel positivity-preserving, parameter-free numerical stabilisation approach for high-order discontinuous spectral element approximations of compressible multi-speci…
Towards full molecular gas dynamics simulations of complex flows via the Boltzmann equation
Tarik Dzanic, Luigi Martinelli
This work explores the capability of simulating complex fluid flows by directly solving the Boltzmann equation. Due to the high-dimensionality of the governing equation, the substa…
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…
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…