54 citations · 99 across the 9 of their papers we have counts for
9 papers
Conservative velocity mappings for discontinuous Galerkin kinetics
Manaure Francisquez, Petr Cagas, Akash Shukla +2
Continuum computational kinetic plasma models evolve the distribution function of a plasma species on a phase-space grid over time. In many problems of interest the distribut…
An investigation of shock formation versus shock mitigation of colliding plasma jets
Petr Cagas, James Juno, Ammar Hakim +4
This work studies the interaction between colliding plasma jets to understand regimes in which jet merging results in shock formation versus regimes in which the shock formation is…
Plasma sheath studies using a physical treatment of electron emission from a dielectric wall
Kolter Bradshaw, Petr Cagas, Ammar Hakim +1
When a plasma sheath forms next to a dielectric wall, material properties determine electron absorption and reflection from the surface, impacting the sheath formation and structur…
A kinetic interpretation of the classical Rayleigh-Taylor instability
John Rodman, Petr Cagas, Ammar Hakim +1
Rayleigh-Taylor (RT) instabilities are prevalent in many physical regimes ranging from astrophysical to laboratory plasmas and have primarily been studied using fluid models, the m…
A boundary value "reservoir problem" and boundary conditions for multi-moment multifluid simulations of sheaths
Petr Cagas, Ammar Hakim, Bhuvana Srinivasan
Multifluid simulations of plasma sheaths are increasingly used to model a wide variety of problems in plasma physics ranging from global magnetospheric flows around celestial bodie…
Boundary Conditions for Continuum Simulations of Wall-bounded Kinetic Plasmas
Petr Cagas, Ammar Hakim, Bhuvana Srinivasan
Continuum kinetic simulations of plasmas, where the distribution function of the species is directly discretized in phase-space, permits fully kinetic simulations without the stati…
Continuum Kinetic Simulations of Plasma Sheaths and Instabilities
Petr Cagas
A careful study of plasma-material interactions is essential to understand and improve the operation of devices where plasma contacts a wall. Key contributions of this work include…
Nonlinear saturation of the Weibel instability
Petr Cagas, Ammar Hakim, Wayne Scales +1
The growth and saturation of magnetic fields due to the Weibel instability (WI) have important implications for laboratory and astrophysical plasmas, and this has drawn significant…
Continuum Kinetic and Multi-Fluid Simulations of Classical Sheaths
Petr Cagas, Ammar Hakim, James Juno +1
The kinetic study of plasma sheaths is critical, among other things, to understand the deposition of heat on walls, the effect of sputtering, and contamination of the plasma with d…