Fluid description of collisional current filamentation instability of a weakly ionized plasma in the presence of magnetic field
In this paper, the collisional filamentation instability of an electron beam-weakly magnetized and ionized plasma has been investigated in the presence of background plasma, using the fluid description. By describing the equilibrium configuration in the presence of binary collision terms between cha...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Isfahan University of Technology
2019-06-01
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| Series: | Iranian Journal of Physics Research |
| Subjects: | |
| Online Access: | http://ijpr.iut.ac.ir/browse.php?a_code=A-10-617-2&slc_lang=en&sid=1 |
| _version_ | 1819056095508824064 |
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| author | K Hajisharifi S Tajik-Nezhad H Mehdian |
| author_facet | K Hajisharifi S Tajik-Nezhad H Mehdian |
| author_sort | K Hajisharifi |
| collection | DOAJ |
| description | In this paper, the collisional filamentation instability of an electron beam-weakly magnetized and ionized plasma has been investigated in the presence of background plasma, using the fluid description. By describing the equilibrium configuration in the presence of binary collision terms between charged and neutral particles and using the local approximation method, the dispersion relation (DR) of instable mode (filamentation instability) has been obtained and the effect of collision and magnetic field driven-destabilization and current-driven stabilization on the growth rate of instability has been studied. The results show the cut-off wave number and the magnetic threshold for the filamentation instability in the collisional magnetized plasma in which the instability will disappear for the larger wave number and larger magnetic fields. Studies show that the value of cut-off wave number and magnetic threshold are raised by increasing the electron beam current density. |
| first_indexed | 2024-12-21T13:17:58Z |
| format | Article |
| id | doaj.art-32b1c14e48a14acb82ede6448bf44827 |
| institution | Directory Open Access Journal |
| issn | 1682-6957 2345-3664 |
| language | English |
| last_indexed | 2024-12-21T13:17:58Z |
| publishDate | 2019-06-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Iranian Journal of Physics Research |
| spelling | doaj.art-32b1c14e48a14acb82ede6448bf448272022-12-21T19:02:39ZengIsfahan University of TechnologyIranian Journal of Physics Research1682-69572345-36642019-06-01191157166Fluid description of collisional current filamentation instability of a weakly ionized plasma in the presence of magnetic fieldK Hajisharifi0S Tajik-Nezhad1H Mehdian2 Department of Physics and Institute for Plasma Research, Kharazmi University,Tehran, Iran Department of Physics and Institute for Plasma Research, Kharazmi University,Tehran, Iran Department of Physics and Institute for Plasma Research, Kharazmi University,Tehran, Iran In this paper, the collisional filamentation instability of an electron beam-weakly magnetized and ionized plasma has been investigated in the presence of background plasma, using the fluid description. By describing the equilibrium configuration in the presence of binary collision terms between charged and neutral particles and using the local approximation method, the dispersion relation (DR) of instable mode (filamentation instability) has been obtained and the effect of collision and magnetic field driven-destabilization and current-driven stabilization on the growth rate of instability has been studied. The results show the cut-off wave number and the magnetic threshold for the filamentation instability in the collisional magnetized plasma in which the instability will disappear for the larger wave number and larger magnetic fields. Studies show that the value of cut-off wave number and magnetic threshold are raised by increasing the electron beam current density.http://ijpr.iut.ac.ir/browse.php?a_code=A-10-617-2&slc_lang=en&sid=1current filamentation instabilitywealky ionized plasmamagnetic fieldfluid equationscollision |
| spellingShingle | K Hajisharifi S Tajik-Nezhad H Mehdian Fluid description of collisional current filamentation instability of a weakly ionized plasma in the presence of magnetic field Iranian Journal of Physics Research current filamentation instability wealky ionized plasma magnetic field fluid equations collision |
| title | Fluid description of collisional current filamentation instability of a weakly ionized plasma in the presence of magnetic field |
| title_full | Fluid description of collisional current filamentation instability of a weakly ionized plasma in the presence of magnetic field |
| title_fullStr | Fluid description of collisional current filamentation instability of a weakly ionized plasma in the presence of magnetic field |
| title_full_unstemmed | Fluid description of collisional current filamentation instability of a weakly ionized plasma in the presence of magnetic field |
| title_short | Fluid description of collisional current filamentation instability of a weakly ionized plasma in the presence of magnetic field |
| title_sort | fluid description of collisional current filamentation instability of a weakly ionized plasma in the presence of magnetic field |
| topic | current filamentation instability wealky ionized plasma magnetic field fluid equations collision |
| url | http://ijpr.iut.ac.ir/browse.php?a_code=A-10-617-2&slc_lang=en&sid=1 |
| work_keys_str_mv | AT khajisharifi fluiddescriptionofcollisionalcurrentfilamentationinstabilityofaweaklyionizedplasmainthepresenceofmagneticfield AT stajiknezhad fluiddescriptionofcollisionalcurrentfilamentationinstabilityofaweaklyionizedplasmainthepresenceofmagneticfield AT hmehdian fluiddescriptionofcollisionalcurrentfilamentationinstabilityofaweaklyionizedplasmainthepresenceofmagneticfield |