7 papers
Sorting prolate and oblate spheroids with a diatomic gas in a magnetic field
Ruben Lier
For a gas of diatomic particles with a nonzero magnetic moment, the Senftleben-Beenakker effect implies that transport can be affected by a magnetic field even when the particles a…
Finite-volume scheme for first-order viscoresistive relativistic magnetohydrodynamics
Ruben Lier, Jay Armas, Oliver Porth
We present a numerical implementation of dissipative relativistic magnetohydrodynamics based on Bemfica-Disconzi-Noronha-Kovtun (BDNK) theory, in which first-order corrections rend…
Chapman-Enskog expansion for chirally colliding disks
Ruben Lier, PaweÅ Matus
We study a two-dimensional fluid of hard disks undergoing chiral, energy- and momentum-conserving collisions. We show that despite the microscopic breaking of time-reversal symmetr…
Hydrodynamics of thermal active matter
Jay Armas, Akash Jain, Ruben Lier
Active matter concerns many-body systems comprised of living or self-driven agents that collectively exhibit macroscopic phenomena distinct from conventional passive matter. Using…
Resistive relativistic magnetohydrodynamics without Amperes Law
Ruben Lier, Akash Jain, Jay Armas +1
Resistive magnetohydrodynamics is thought to play a key role in transient astrophysical phenomena such as black hole flares and neutron star magnetospheres. When performing numeric…
On the temperature of an active nematic
Jay Armas, Akash Jain, Ruben Lier
We employ a novel hydrodynamic framework for active matter coupled to an environment to study the local temperature of an active nematic, assuming proximity to thermal equilibrium.…