TITLE

The convective growth of the beam–plasma instability

AUTHOR(S)
Rowland, H. L.
PUB. DATE
March 1989
SOURCE
Physics of Fluids B: Plasma Physics;Mar89, Vol. 1 Issue 3, p700
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Using a newly modified version of a low noise Vlasov code, a series of simulations studying the convective growth of the cold-beam, warm-plasma instability is performed. The scalings of spatial growth on beam density and velocity are in good agreement with earlier theoretical predictions. In agreement with Bers [Basic Plasma Physics (North Holland, Amsterdam, 1983), p. 451], the spatial growth rate ki λD =γ/(v1v2v3 )1/3, where γ is the temporal growth rate and vα is the linear group velocity of the three modes coupled by the instability. For the cold-beam, warm-plasma instability, this reduces to the standard formula ki λD =(3)1/2/2 (nb ve /6npvb)1/3.
ACCESSION #
9830498

 

Related Articles

  • The effect of an insulating boundary on plasma stability. Hameiri, Eliezer; Mond, Michael // Physics of Fluids B: Plasma Physics;Apr91, Vol. 3 Issue 4, p880 

    It is shown that the boundary conditions corresponding to an insulating boundary follow as the ‘‘natural’’ boundary conditions resulting from minimization of the plasma energy without specifying the type of boundary. This property has the implication that the linearized...

  • Equilibrium of field reversed configurations with rotation. IV. Two space dimensions and many ion species. Qerushi, Artan; Rostoker, Norman // Physics of Plasmas;Mar2003, Vol. 10 Issue 3, p737 

    In a previous paper [N. Rostoker and A. Qerushi, Phys. Plasmas 9, 3057 (2002)] a generalized Grad-Shafranov equation for the plasma flux function was derived which provides a complete description of equilibria of field reversed configurations with rotation. In this paper this fundamental...

  • Particle simulations of boundary-condition and hf-field effects on strong double layers in a collisionless bounded plasma. Bulanov, S. V.; Kuhn, S.; Sakharov, A. S. // Physics of Fluids B: Plasma Physics;Sep92, Vol. 4 Issue 9, p2871 

    The evolution of electrostatic double layers (DL’s) in a collisionless plasma diode with injection of current-carrying plasma from both ends is systematically investigated by means of particle-in-cell simulations. These simulations have been performed with the one-dimensional...

  • Relaxed plasma-vacuum systems. Spies, G. O.; Lortz, D.; Kaiser, R. // Physics of Plasmas;Aug2001, Vol. 8 Issue 8 

    Taylor’s theory of relaxed toroidal plasmas (states of lowest energy with fixed total magnetic helicity) is extended to include a vacuum between the plasma and the wall. In the extended variational problem, one prescribes, in addition to the helicity and the magnetic fluxes whose...

  • Convection in a cylindrical plasma column with a free boundary. Gomberoff, L.; Gomberoff, K. // Physics of Fluids B: Plasma Physics;Jun92, Vol. 4 Issue 6, p1428 

    It is shown that in a current-carrying cylindrical plasma with a free boundary, resistivity and thermal conductivity can lead to large-scale steady convection. Convection can take place for any azimuthal wave number m, provided that |k|a>1 or |k|a<1, where k is the longitudinal wave number and a...

  • Drifts, boundary conditions and convection on open field lines. Cohen, Ronald H.; Ryutov, Dmitri // Physics of Plasmas;May99, Vol. 6 Issue 5, p1995 

    Studies the poloidal and radial drifts, boundary conditions and convection on open field lines. Derivation of the hydrodynamic constraints on mass flows and the current boundary conditions; Asymmetries produced by poloidal drifts.

  • Coupled moment expansion model for the dynamics in a beam-plasma system. Backhaus, E. Yu.; Wurtele, J. S. // Physics of Plasmas;Nov2000, Vol. 7 Issue 11 

    A new technique is developed to study beam dynamics in an overdense plasma. This technique is an alternative to, and extension of, the well-known envelope equation formalism, and it can be used in systems with nonlinear forces. It is based on a systematic moment expansion of the Vlasov equation....

  • Dynamics of nonlinearly coupled upper-hybrid waves and modified Alfvén modes in a magnetized dusty plasma. Shukla, P.K.; Stenflo, L. // Physics of Plasmas;Nov2003, Vol. 10 Issue 11, p4572 

    The nonlinear interaction between a large amplitude electrostatic upper-hybrid (uh) wave and Rao’s modified Alfvén mode in a uniform dusty magnetoplasma is considered. The wave equation for the uh wave envelope in a background of electron density and compressional magnetic field...

  • Streaming instability in bounded three-component quantum plasmas. Ke-Zhi Zhang; Ju-Kui Xue // Physics of Plasmas;Mar2010, Vol. 17 Issue 3, p032113 

    By employing a quantum hydrodynamic model for bounded three-component quantum plasmas, two kinds of streaming instabilities due to ion-streaming and dust-streaming are studied. For this purpose, the dispersion relation for the bounded wave in quantum electron-ion-dust plasmas is obtained by...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics