Numerical investigation on the stabilization of the deceleration phase Rayleigh-Taylor instability due to alpha particle heating in ignition target

2012 ◽  
Vol 99 (6) ◽  
pp. 65003 ◽  
Author(s):  
Zhengfeng Fan ◽  
Shaoping Zhu ◽  
Wenbing Pei ◽  
Wenhua Ye ◽  
Meng Li ◽  
...  
Keyword(s):  
Numerical Investigation ◽  
Alpha Particle ◽  
Taylor Instability ◽  
Deceleration Phase ◽  
Rayleigh Taylor Instability ◽  
Particle Heating

scholarly journals Three-dimensional simulations of the Rayleigh–Taylor instability during the deceleration phase

1994 ◽  
Vol 12 (2) ◽  
pp. 163-183 ◽  
Author(s):  
R.P.J. Town ◽  
B.J. Jones ◽  
J.D. Findlay ◽  
A.R. Bell
Keyword(s):  
Inertial Confinement Fusion ◽  
Nonlinear Evolution ◽  
Three Dimensional ◽  
Taylor Instability ◽  
Three Dimensions ◽  
Inertial Confinement ◽  
Deceleration Phase ◽  
Confinement Fusion ◽  
Rayleigh Taylor Instability ◽  
Three Dimensional Simulations

The growth of the Rayleigh-Taylor instability in three dimensions is ex amined during the deceleration phase of an inertial confinement fusion implosion. A detailed discussion of the three-dimensional hydrocode, PLATO, is presented. A review of previous calculations is given, concentrating on theshape of the R-T instability in three dimensions. Results of the growth rate during the linear phase, the saturation amplitude, and the nonlinear evolution are presented.

scholarly journals Hydrodynamic scaling of the deceleration-phase Rayleigh–Taylor instability

2015 ◽  
Vol 22 (7) ◽  
pp. 072702 ◽  
Author(s):  
A. Bose ◽  
K. M. Woo ◽  
R. Nora ◽  
R. Betti
Keyword(s):  
Taylor Instability ◽  
Deceleration Phase ◽  
Hydrodynamic Scaling ◽  
Rayleigh Taylor Instability

scholarly journals Rayleigh–Taylor Instability With Varying Periods of Zero Acceleration

2020 ◽  
Vol 142 (12) ◽  
Author(s):  
Denis Aslangil ◽  
Zachary Farley ◽  
Andrew G. W. Lawrie ◽  
Arindam Banerjee
Keyword(s):  
Numerical Investigation ◽  
Structural Changes ◽  
Mixing Layer ◽  
Taylor Instability ◽  
Scaling Exponent ◽  
External Forcing ◽  
Acceleration Field ◽  
Rayleigh Taylor Instability

Abstract We present our findings from a numerical investigation of the acceleration-driven Rayleigh–Taylor Instability, modulated by varying periods without an applied acceleration field. It is well known from studies on shock-driven Richtmyer–Meshkov instability that mixing without external forcing grows with a scaling exponent as ≈t0.20−0.28. When the Rayleigh–Taylor Instability is subjected to varying periods of “zero” acceleration, the structural changes to the mixing layer remain remarkably small. After the acceleration is re-applied, the mixing layer quickly resumes the profile of development it would have had if there had been no intermission. This behavior contrasts in particular with the strong sensitivity that is found to other variable acceleration profiles examined previously in the literature.

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