title: Mechanism of growth reduction of the deceleration-phase ablative Rayleigh-Taylor instability.
abstract: The deceleration-phase (dp) ablative Rayleigh-Taylor instability (RTI) of igniting and nonigniting inertial fusion capsules is studied by high-resolution two-dimensional Lagrangian fluid simulations. It is found that growth reduction of the dp-RTI with respect to classical RTI results from the advection of perturbed fluid elements outside a thin unstable fluid layer. Within this layer, at fixed Lagrangian position, perturbations grow approximately classically.
authors.affiliation: Dipartimento di Energetica, Università di Roma La Sapienza and INFM, Via Antonio Scarpa 14, I-00161 Rome, Italy.
authors.forename: Stefano
authors.initials: S
authors.lastname: Atzeni
authors.forename: Mauro
authors.initials: M
authors.lastname: Temporal