Low-frequency shock waves in a magnetized superthermal dusty plasma
سال انتشار: 1396
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 339
فایل این مقاله در 9 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_JTAP-11-3_003
تاریخ نمایه سازی: 27 مرداد 1397
چکیده مقاله:
The characteristics of low-frequency shocks in amagnetized dusty plasma comprising of negatively chargeddust fluid, kappa-distributed electrons and ions have beeninvestigated. Using the reductive perturbation method, thenonlinear Korteweg de–Vries–Burgers (KdV–B) equationwhich governs the dynamics of the dust acoustic (DA)shock waves is derived. The characteristics of shockstructures are studied under the influence of various plasmaparameters, viz. superthermality of ions, magnetic field,electron-to-dust-density ratio, kinematic viscosity, ion-toelectron-temperature ratio and obliqueness. The combinedeffects of these physical parameters significantly influencethe characteristics of DA shock structures. It is observedthat only negative potential shocks exist in a plasmaenvironment comprising of dust fluid and superthermalelectrons and ions such as that of Saturn’s magnetosphere.
کلیدواژه ها:
Dust acoustic Shock waves KdV–Burgers Superthermal
نویسندگان
B.S Chahal
Department of Physics, Guru Nanak Dev University, Amritsar, India
Yashika Ghai
Department of Physics, Guru Nanak Dev University, Amritsar, India
N.S Saini
Department of Physics, Guru Nanak Dev University, Amritsar, India