24 citations · 84 across the 10 of their papers we have counts for
5 papers · 1 filter
Effect of spatial distribution of mesoscale heterogeneities on the shock-to-detonation transition in liquid nitromethane
XiaoCheng Mi, Louisa Michael, Nikolaos Nikiforakis +1
The sensitizing effect of cavities in the form of microbubbles on the shock initiation of a homogeneous liquid explosive is studied computationally. While the presence of voids in…
An embedded boundary approach for efficient simulations of viscoplastic fluids in three dimensions
Knut Sverdrup, Ann Almgren, Nikolaos Nikiforakis
We present a methodology for simulating three-dimensional flow of incompressible viscoplastic fluids modelled by generalised Newtonian rheological equations. It is implemented in a…
Direct numerical simulation of particle sedimentation in a Bingham fluid
A. R. Koblitz, S. Lovett, N. Nikiforakis
The settling efficiency, and stability with respect to settling, of a dilute suspension of infinite circular cylinders in a quiescent viscoplastic fluid is examined by means of dir…
Highly parallelisable simulations of time-dependent viscoplastic fluid flow simulations with structured adaptive mesh refinement
Knut Sverdrup, Nikolaos Nikiforakis, Ann Almgren
We present the extension of an efficient and highly parallelisable framework for incompressible fluid flow simulations to viscoplastic fluids. The system is governed by incompressi…
A complete equation of state for non-ideal condensed phase explosives
Simon David Wilkinson, Martin Braithwaite, Nikolaos Nikiforakis +1
The objective of this work is to improve the robustness and accuracy of numerical simulations of both ideal and non-ideal explosives by introducing temperature dependence in mechan…