Δημοσιεύσεις

Project Acronym: LaMIPlaS
Title: Laser Matter Interactions and Plasma Simulations
Affiliation: technological educational institute of crete
Pi: Vasilis Dimitriou
Research Field: laser matter interactions and plasma simulations

Preliminary computational study of plasma dynamic evolution produced by low current table-top pinch plasma devices
by Skoulakis, Alexandros, Koundourakis, Giorgos, Kaselouris, Evaggelos, Fitilis, Ioannis, Bakarezos, Efthimios, L Clark, E, Vlahakis, Nektarios, A Papadogiannis, Nektarios, Vasillis, Dimitriou and Tatarakis, Michael
Abstract:
Pulsed power generators like Z-and X-Pinch devices produce hot and dense plasma. This type of plasma attracts the research interest due to the important emerging applications covering a wide range of disciplines like high energy density physics-HEDP, inertial confinement fusion, laboratory astrophysics and point projection radiography. In order to study such a multiphysics problem, the development of advanced computational models and simulation schemes is required, to offer insights to the experimental results. In our preliminary computational study, the astrophysical magnetohydrodynamics-MHD code PLUTO is partially modified to simulate the dynamics of plasma evolution. New algorithms for the PLUTO modules that extend the code applicability to laboratory plasmas are developed and tested, summarized to the: i. modified PVTE Equation of state-EOS using tabulated data by SESAME Database ii. electric resistivity according to the Spitzer formulation iii. radiative losses from an optically thin plasma using FLYCHK code tabulated data iv. modified radiation transfer model updated to include metal materials v. determination of plasma density, where effective ionization charge state, tabulated values by the FLYCHK code. These PLUTO modifications provide the ability of studying the formation of minidiodes, constrictions and also micro explosions of the hot points, on Z-type loads.
Reference:
Preliminary computational study of plasma dynamic evolution produced by low current table-top pinch plasma devices (Skoulakis, Alexandros, Koundourakis, Giorgos, Kaselouris, Evaggelos, Fitilis, Ioannis, Bakarezos, Efthimios, L Clark, E, Vlahakis, Nektarios, A Papadogiannis, Nektarios, Vasillis, Dimitriou and Tatarakis, Michael), In 9th GRACM International Congress on Computational Mechanics, 2018.
Bibtex Entry:
@inproceedings{inpro2018-3,
 booktitle = {9th GRACM International Congress on Computational Mechanics},
 isbn = {978-618-81537-5-2},
 venue = {Chania, Greece},
 author = {Skoulakis, Alexandros and Koundourakis, Giorgos and Kaselouris, Evaggelos and Fitilis, Ioannis and Bakarezos, Efthimios and L Clark, E and Vlahakis, Nektarios and A Papadogiannis, Nektarios and Vasillis, Dimitriou and Tatarakis, Michael},
 year = {2018},
 bibyear = {2018},
 month = {06},
 pages = {},
 title = {Preliminary computational study of plasma dynamic evolution produced by low current table-top pinch plasma devices},
 abstract = {Pulsed power generators like Z-and X-Pinch devices produce hot and dense plasma. This type of plasma attracts the research interest due to the important emerging applications covering a wide range of disciplines like high energy density physics-HEDP, inertial confinement fusion, laboratory astrophysics and point projection radiography. In order to study such a multiphysics problem, the development of advanced computational models and simulation schemes is required, to offer insights to the experimental results. In our preliminary computational study, the astrophysical magnetohydrodynamics-MHD code PLUTO is partially modified to simulate the dynamics of plasma evolution. New algorithms for the PLUTO modules that extend the code applicability to laboratory plasmas are developed and tested, summarized to the: i. modified PVTE Equation of state-EOS using tabulated data by SESAME Database ii. electric resistivity according to the Spitzer formulation iii. radiative losses from an optically thin plasma using FLYCHK code tabulated data iv. modified radiation transfer model updated to include metal materials v. determination of plasma density, where effective ionization charge state, tabulated values by the FLYCHK code. These PLUTO modifications provide the ability of studying the formation of minidiodes, constrictions and also micro explosions of the hot points, on Z-type loads.},
}