# Analytic magnetohydrodynamic equilibria of a magnetically confined plasma with sheared flows

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- Spectral properties of the kinetic AlfvÃ©n wave in cylindrical tokamak geometry. van Rij, W. I.; Vahala, G.; Sigmar, D. J. // Physics of Fluids (00319171);Aug85, Vol. 28 Issue 8, p2484
It is shown, for a tokamak-like cylindrical plasma and small poloidal and toroidal mode numbers, that the full gyrokinetic shear AlfvÃ©n spectrum is discrete when k[sub ] â‰ 0. Calculations of the global eigenmodes of the magnetohydrodynamic (MHD) limit, and their first-order finite...

- Large-mode-number magnetohydrodynamic instability driven by sheared flows in a tokamak plasma with reversed central shear. Bierwage, Andreas; Qingquan Yu; Günter, Sibylle // Physics of Plasmas;Jan2007, Vol. 14 Issue 1, p010704
The effect of a narrow sub-AlfvÃ©nic shear flow layer near the minimum qmin of the tokamak safety factor profile in a configuration with reversed central shear is analyzed. Sufficiently strong velocity shear gives rise to a broad spectrum of fast growing Kelvin-Helmholtz (KH)-like ideal...

- Deuterium-tritium simulations of the enhanced reversed shear mode in the Tokamak Fusion Test... Mikkelsen, D.R.; Manickam, J.; Scott, S.D. // Physics of Plasmas;May97, Vol. 4 Issue 5, p1316
Assesses the potential performance, in deuterium-tritium plasmas, of an enhanced confinement regime with reversed magnetic shear. Estimation of equilibrium conditions for an enhanced reversed shear mode plasma by solving the plasma transport equations; Peak fusion power; Magnetohydrodynamic...

- Chaos in the parallel sheared plasma flow driven electromagnetic turbulence in nonuniform... Mirza, Arshad M.; Rafiq, Tariq // Physics of Plasmas;Apr99, Vol. 6 Issue 4, p1107
Reports on a system of nonlinear equations for low-frequency electromagnetic waves in nonuniform collisional magnetoplasmas. Instabilities of Alfven-type waves in the absence of the density gradient; Growth rate of electromagnetic parallel velocity shear mode; Understanding the linear and...

- The effect of sheared axial flow on the interchange mode in a hard-core Z pinch. Kouznetsov, A.; Freidberg, J. P.; Kesner, J. // Physics of Plasmas;Jan2007, Vol. 14 Issue 1, p012503
It is well known that a static (i.e., v=0) closed field line configuration, such as a levitated dipole, or a hard-core Z pinch, can be stabilized against ideal magnetohydrodynamic (MHD) interchange modes when the edge pressure gradient is sufficiently weak. The stabilizing effect is provided by...

- Transient phenomena and secularity of linear interchange instabilities with shear flows in homogeneous magnetic field plasmas. Tatsuno, T.; Volponi, F.; Yoshida, Z. // Physics of Plasmas;Feb2001, Vol. 8 Issue 2, p399
Transient and secular behaviors of interchange fluctuations are analyzed in an ambient shear flow by invoking Kelvin's method of shearing modes. Because of its non-Hermitian property, complex transient phenomena can occur in a shear flow system. The combined effect of shear flow mixing and...

- Results for resistive compressible flow ballooning modes in a large aspect ratio expansion. Grassie, K.; Krech, M. // Physics of Fluids B: Plasma Physics;Aug90, Vol. 2 Issue 8, p1864
Based on an eikonal approach and the corresponding expansion in the inverse toroidal mode number 1/n large aspect ratio expanded equations for linear resistive, compressible ballooning modes including toroidal, sheared flow are derived. Limitations of this formalism leading to a nonexponential...

- Non-uniform rotation and the resistive wall mode. Gimblett, C.G.; Hastie, R.J.; der Linden, R.A.M. Van // Physics of Plasmas;Oct96, Vol. 3 Issue 10, p3619
Examines the consequences of a sheared flow on the resistive wall mode (RWM) stabilized by a combination of plasma rotation and visco-resistive dissipation. Comparison with the results of uniform flow; Possibility of the RWM coupling to and converting into a Kelvin-Helmholtz mode; Position of...

- Influence of continuous spectrum on ballooning instabilities in plasmas with shear-flow. Taylor, J. B. // Physics of Plasmas;Jun99, Vol. 6 Issue 6, p2425
Studies the influence of shear-flow on stability of plasma ballooning models. Determination of the growth rate of ballooning models; Intervention of the stable magnetohydrodynamic continuum; Short-wavelength perturbations.