Analytical solution of Rayleigh-Taylor instability in a Hall thruster having double-ionized ions
الموضوعات : Journal of Theoretical and Applied PhysicsDhananjay Verma 1 , Hitendra K. Malik 2
1 - Plasma Science and Technology Laboratory, Department of Physics, Indian Institute of Technology Delhi, New Delhi, India.
2 - Plasma Science and Technology Laboratory, Department of Physics, Indian Institute of Technology Delhi, New Delhi, India.
الکلمات المفتاحية: Multi-ionized ions, Instability conditions, Density-driven instability, Solution of modified Rayleigh-,
ملخص المقالة :
A modified Rayleigh-Taylor (RT) instability equation is derived using a three-fluid Hall thruster plasma model by including multi-ionized ions to study the growth rate of the RT instability. For a simplified plasma density and electron drift velocity axial profile, the growth rate for an unstable wave and the condition leading to this instability are discussed. A possible analytical solution for the modified Rayleigh-Taylor equation is discussed along with the condition that leads to it. For double-ionized ions, the behavior of growth rate and perturbed potential for different densities of double-ionized ions are studied.
