Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Radiation hydrodynamic theory of double ablation fronts in direct-drive inertial confinement fusion
Year:2009
Research Areas
  • Electronic
Information
Abstract
The one-dimensional theory of double ablation fronts is developed for direct-drive inertial confinement fusion targets. The theory is based on the subsonic ablation front approximation and includes the effects of both radiation and electron heat fluxes. It is found that the structure of the ablation front is determined by two dimensionless parameters: the Boltzmann number and the effective mean free path. The Boltzmann number represents the ratio of the convective thermal and radiation energy fluxes, while the effective mean free path is the ratio between the characteristic plasma temperature, gradient conduction scale length and the radiation mean free path. The development of a double ablation front is determined based on the range of the above dimensionless parameters. Temperature and density profiles in double ablation fronts are derived from a simplified analytic model and compared with the results of numerical simulations.
International
Si
JCR
Si
Title
PHYSICS OF PLASMAS
ISBN
1070-664X
Impact factor JCR
2,427
Impact info
Volume
16
10.1063/1.3202697
Journal number
8
From page
082704-1
To page
18
Month
AGOSTO
Ranking
Participants
  • Autor: J. Feugeas
  • Autor: R. Betti
  • Autor: V. Tikhonchuk
  • Autor: V. Drean
  • Autor: Fco. Javier Sanz Recio (UPM)
  • Autor: M. Olazabal-Loume
  • Autor: V.A. Smalyuk
  • Autor: X. Ribeyre
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Investigación en Fusión Inercial y Física de Plasmas
  • Departamento: Física Aplicada a la Ingeniería Aeronáutica
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