Compressibility effects on Rayleigh–Taylor instability in a vertical inhomogeneous rotating plasma

Ablative Rayleigh-Taylor Instability: Compressibility Effects

Rayleigh-Taylor instability of an ablation front is one of the main issues that determine the performance of an inertial fusion target. In the last few years we have improved our understanding of this instability thanks to several analytical and semianalytical models developed mainly for the regime of relatively short perturbation wavelength λ (kL0 << 1 and k=2π/λ is the perturbation wave numbe...

Modeling the Parker instability in a rotating plasma screw pinch

Compressibility of rotating black holes

Interpreting the cosmological constant as a pressure, whose thermodynamically conjugate variable is a volume, modifies the first law of black hole thermodynamics. Properties of the resulting thermodynamic volume are investigated: the compressibility and the speed of sound of the black hole are derived in the case of non-positive cosmological constant. The adiabatic compressibility vanishes for ...

On feedback stabilization of the tokamak plasma vertical instability

For more than a decade the vertical position instability intrinsic to vertically elongated tokamak plasmas has been relatively well understood. Controllers that stabilize this instability have been in routine use at experimental devices since the 1980’s. However, most of the analysis of this instability has been restricted to low order approximations, often just one state, from which understand...

Determination of Dynamic Instability Speed of an Unsweep Wing in Subsonic Flow Including Compressibility Effects

In this paper, the equation of motion of an elastic 2 DoF wing model has been derived using Lagrange's method. The aerodynamic loads on the wing were calculated via the Strip-Theory and the effect of compressibility was included. Wing deflections due to bending and twist motions were determined using the Assume-Mode method. The aeroelastic equations were solved numerically using the V-g method....