Petr Cagaš
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View article: Conservative Velocity Mappings for Discontinuous Galerkin Kinetics
Conservative Velocity Mappings for Discontinuous Galerkin Kinetics Open
View article: An investigation of shock formation vs shock mitigation of colliding plasma jets
An investigation of shock formation vs shock mitigation of colliding plasma jets Open
This work studies the interaction between colliding plasma jets to understand regimes in which jet merging results in shock formation vs regimes in which the shock formation is mitigated due to the collisionless interpenetration of the jet…
View article: An investigation of shock formation versus shock mitigation of colliding plasma jets
An investigation of shock formation versus shock mitigation of colliding plasma jets Open
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 mitigated due to the collisionless interpenetration of the…
View article: Plasma sheath studies using a physical treatment of electron emission from a dielectric wall
Plasma sheath studies using a physical treatment of electron emission from a dielectric wall Open
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 structure. The low energy regime of this interaction is often not c…
View article: Kinetic interpretation of the classical Rayleigh-Taylor instability
Kinetic interpretation of the classical Rayleigh-Taylor instability Open
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 majority of which have been ideal fluid models. This work is…
View article: A boundary value “reservoir problem” and boundary conditions for multi-moment multifluid simulations of sheaths
A boundary value “reservoir problem” and boundary conditions for multi-moment multifluid simulations of sheaths Open
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 bodies to plasma–wall interactions in thrusters and fusion devic…
View article: Boundary Conditions for Continuum Simulations of Wall-bounded Kinetic Plasmas
Boundary Conditions for Continuum Simulations of Wall-bounded Kinetic Plasmas Open
Continuum kinetic simulations of plasmas, where the distribution function of the species is directly discretized in phase-space, permits fully kinetic simulations without the statistical noise of particle-in-cell methods. Recent advances i…
View article: Erratum: “Nonlinear saturation of the Weibel instability” [Phys. Plasmas <b>24</b>, 112116 (2017)]
Erratum: “Nonlinear saturation of the Weibel instability” [Phys. Plasmas <b>24</b>, 112116 (2017)] Open
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View article: Erratum: “Continuum kinetic and multi-fluid simulations of classical sheaths” [Phys. Plasmas <b>24</b>, 022118 (2017)]
Erratum: “Continuum kinetic and multi-fluid simulations of classical sheaths” [Phys. Plasmas <b>24</b>, 022118 (2017)] Open
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View article: Continuum Kinetic Simulations of Plasma Sheaths and Instabilities
Continuum Kinetic Simulations of Plasma Sheaths and Instabilities Open
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 (i) novel continuum kinetic algorithms with novel boundary…
View article: Nonlinear saturation of the Weibel instability
Nonlinear saturation of the Weibel instability Open
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 interest recently. Since the WI can generate a large magne…
View article: CzeV - The Czech Variable Star Catalogue
CzeV - The Czech Variable Star Catalogue Open
We present the first release of the Czech Variable star catalogue that currently contains 1228 stars whose variability was discovered by 60 Czech observers. The catalogue contains confirmed variable stars of various types, but also candida…
View article: Continuum kinetic and multi-fluid simulations of classical sheaths
Continuum kinetic and multi-fluid simulations of classical sheaths Open
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 detrimental impurities. The plasma sheath also provides a bo…