Influence of ion-neutral collisional frequency and Kappa spectral index on dynamics of nonlinear ion-acoustic waves in superthermal plasmas
The present work investigates the propagation of nonlinear ion-acoustic waves in a collisional plasma with superthermal electrons and a Kappa distribution function. Considering the basic fluid equations and the ion-neutral collisions, a modified nonlinear Korteweg-de Vries (K-dV) equation is derived...
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| Format: | Article |
| Language: | fas |
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Nuclear Science and Technology Research Institute
2021-09-01
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| Series: | مجله علوم و فنون هستهای |
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| Online Access: | https://jonsat.nstri.ir/article_1296_7a5cc25fbccda920c279a230ecb3a47f.pdf |
| _version_ | 1797835387347927040 |
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| author | M. Mehdipoor |
| author_facet | M. Mehdipoor |
| author_sort | M. Mehdipoor |
| collection | DOAJ |
| description | The present work investigates the propagation of nonlinear ion-acoustic waves in a collisional plasma with superthermal electrons and a Kappa distribution function. Considering the basic fluid equations and the ion-neutral collisions, a modified nonlinear Korteweg-de Vries (K-dV) equation is derived using the reductive perturbation method. It was found that only compressive ion-acoustic solitary waves can be propagated in this model. Also, the numerical results show that ion-neutral collisions have significant effects on solitary wave structures. In other words, the amplitude (width) of the ion-acoustic solitons decreases (increases) with increasing the ion-neutral collision frequency. Moreover, the present plasma model has also studied the effects of the spectral index of superthermal electrons and ion temperature on the ion-acoustic solitons |
| first_indexed | 2024-04-09T14:53:13Z |
| format | Article |
| id | doaj.art-709e06c8a9db483eaebe0bec7ad36d9d |
| institution | Directory Open Access Journal |
| issn | 1735-1871 2676-5861 |
| language | fas |
| last_indexed | 2024-04-09T14:53:13Z |
| publishDate | 2021-09-01 |
| publisher | Nuclear Science and Technology Research Institute |
| record_format | Article |
| series | مجله علوم و فنون هستهای |
| spelling | doaj.art-709e06c8a9db483eaebe0bec7ad36d9d2023-05-02T09:05:52ZfasNuclear Science and Technology Research Instituteمجله علوم و فنون هستهای1735-18712676-58612021-09-01423526110.24200/nst.2021.12961296Influence of ion-neutral collisional frequency and Kappa spectral index on dynamics of nonlinear ion-acoustic waves in superthermal plasmasM. Mehdipoor0Department of Physics, Faculty of Science, Gonbad Kavous University, P.O.Box: 163, Gonbad Kavous - IranThe present work investigates the propagation of nonlinear ion-acoustic waves in a collisional plasma with superthermal electrons and a Kappa distribution function. Considering the basic fluid equations and the ion-neutral collisions, a modified nonlinear Korteweg-de Vries (K-dV) equation is derived using the reductive perturbation method. It was found that only compressive ion-acoustic solitary waves can be propagated in this model. Also, the numerical results show that ion-neutral collisions have significant effects on solitary wave structures. In other words, the amplitude (width) of the ion-acoustic solitons decreases (increases) with increasing the ion-neutral collision frequency. Moreover, the present plasma model has also studied the effects of the spectral index of superthermal electrons and ion temperature on the ion-acoustic solitonshttps://jonsat.nstri.ir/article_1296_7a5cc25fbccda920c279a230ecb3a47f.pdfion-acoustic wavescollisional plasmasuperthermal electronsreductive perturbation methodmodified k-dv equation |
| spellingShingle | M. Mehdipoor Influence of ion-neutral collisional frequency and Kappa spectral index on dynamics of nonlinear ion-acoustic waves in superthermal plasmas مجله علوم و فنون هستهای ion-acoustic waves collisional plasma superthermal electrons reductive perturbation method modified k-dv equation |
| title | Influence of ion-neutral collisional frequency and Kappa spectral index on dynamics of nonlinear ion-acoustic waves in superthermal plasmas |
| title_full | Influence of ion-neutral collisional frequency and Kappa spectral index on dynamics of nonlinear ion-acoustic waves in superthermal plasmas |
| title_fullStr | Influence of ion-neutral collisional frequency and Kappa spectral index on dynamics of nonlinear ion-acoustic waves in superthermal plasmas |
| title_full_unstemmed | Influence of ion-neutral collisional frequency and Kappa spectral index on dynamics of nonlinear ion-acoustic waves in superthermal plasmas |
| title_short | Influence of ion-neutral collisional frequency and Kappa spectral index on dynamics of nonlinear ion-acoustic waves in superthermal plasmas |
| title_sort | influence of ion neutral collisional frequency and kappa spectral index on dynamics of nonlinear ion acoustic waves in superthermal plasmas |
| topic | ion-acoustic waves collisional plasma superthermal electrons reductive perturbation method modified k-dv equation |
| url | https://jonsat.nstri.ir/article_1296_7a5cc25fbccda920c279a230ecb3a47f.pdf |
| work_keys_str_mv | AT mmehdipoor influenceofionneutralcollisionalfrequencyandkappaspectralindexondynamicsofnonlinearionacousticwavesinsuperthermalplasmas |