1. The Heavy Ion Fusion Virtual National Laboratory UC Berkeley C.S. Debonnel 1,2, S.S. Yu 2, P.F. Peterson 1 (1) Thermal Hydraulics Laboratory Department of Nuclear Engineering University of California, Berkeley (2) Accelerator & Fusion Research Division Lawrence Berkeley National Laboratory Heavy-Ion Inertial Fusion Virtual National Laboratory ARIES Meeting, Madison, April 22, 2002 Strategies to Control the Heavy- Ion Beam Line Gas Density and Pressure in the HYLIFE Thick- Liquid Chamber

2. The Heavy Ion Fusion Virtual National Laboratory UC Berkeley 9x9-beam Hybrid HYLIFE II configuration

3. The Heavy Ion Fusion Virtual National Laboratory UC Berkeley Cut-away view shows beam and target injection paths

4. The Heavy Ion Fusion Virtual National Laboratory UC Berkeley Strategies to Prevent Debris Deposition in the Beam Tubes (I) Design efficient target chamber structures Mass and energy fluxes at the entrance of beam ports should be as low as possible Venting in target chamber has been modeled to determine inlet boundary conditions for the beam tubes

5. The Heavy Ion Fusion Virtual National Laboratory UC Berkeley The TSUNAMI 2.8.1 Code TranSient Upwind Numerical Analysis Method for Inertial confinement fusion Provides estimates of the gas dynamics behavior during the venting process in inertial confinement energy systems Ideal gas equation (gives conservative results) Solves Euler’s equations for compressible flows Two-dimensional, axially symmetric pocket

6. The Heavy Ion Fusion Virtual National Laboratory UC Berkeley Axially symmetric 9x9 – Density Contour Plots

7. The Heavy Ion Fusion Virtual National Laboratory UC Berkeley Show Time!

8. The Heavy Ion Fusion Virtual National Laboratory UC Berkeley Axially symmetric 9x9 – Pressure Contour Plots

9. The Heavy Ion Fusion Virtual National Laboratory UC Berkeley Impulse Load on Target-Facing Liquid Structures

10. The Heavy Ion Fusion Virtual National Laboratory UC Berkeley Centerline Beam Port: Integrated Mass Flux

11. The Heavy Ion Fusion Virtual National Laboratory UC Berkeley Centerline Beam Port: Integrated Energy Flux

12. The Heavy Ion Fusion Virtual National Laboratory UC Berkeley Centerline Beam Port: Pressure

13. The Heavy Ion Fusion Virtual National Laboratory UC Berkeley Centerline Beam Port: Velocities

14. The Heavy Ion Fusion Virtual National Laboratory UC Berkeley Key heavy-ion thick-liquid chambers phenomena include gas dynamics and vapor condensation in the target chamber and in the beam tubes

15. The Heavy Ion Fusion Virtual National Laboratory UC Berkeley Strategies to Prevent Debris Deposition in the Beam Tubes (II) Liquid Vortex Ablation Condensation Magnetic sweeper Mechanical shutter

16. The Heavy Ion Fusion Virtual National Laboratory UC Berkeley Centerline Beam Port: Density

17. The Heavy Ion Fusion Virtual National Laboratory UC Berkeley Current & Future Work: Gas Transport in Beam Lines Detail Geometrical Modeling of Beam Tubes Improving the Physics in TSUNAMI: Condensation, Evaporation Real gas equation Radiative Transport