Integrated inertial fusion energy chamber dynamics and response

Hasib Uddin, Richard Kramer, Carlos Pantano, Kevin Kramer, Vincent Tang, Ryan Sacks, Gregory Moses, Ryan Hunt, James Demuth, Howard Scott, A. Mike Dunne

Research output: Contribution to journalArticlepeer-review


This paper presents results of three-dimensional hydrodynamics simulations of the flow inside a model inertial fusion energy (IFE) fusion chamber. Turbulence modeling employing the large-eddy simulation approach is used to estimate the gas dynamics, state, and mixing after a sufficiently large number of target ignitions. The rich radiation-flow physics that takes place immediately after the lasers hit the hohlraum is modeled separately using a high-fidelity one-dimensional model, which provides reference conditions for the complex geometry three-dimensional turbulence simulations. The IFE geometry includes optical ports and recirculation openings as well as a duct to evacuate the debris produced after each energy deposition (as a model of a laser shot). Furthermore, a selected set of sensitivity studies are conducted to estimate the effect of uncertainty in radiative properties of the Xenon gas at the prevalent conditions in the chamber. The results provide guidance regarding the turbulence conditions in the chamber, which seem to have entered a decay state immediately before a new shot takes place. Computational estimates of the density variability within the chamber as well as pressure history at the approximate location of the laser optical ports is presented among other turbulence statistics.

Original languageEnglish (US)
Pages (from-to)3131-3148
Number of pages18
JournalFusion Engineering and Design
Issue number12
StatePublished - Dec 1 2014
Externally publishedYes


  • Fusion chamber
  • IFE
  • Inertial confinement fusion
  • Large-eddy simulation

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering


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