A numerical model for swirl flow cooling in high-heat-flux particle beam targets and the design of a swirl-flow-based plasma limiter
✍ Scribed by S.L. Milora; S.K. Combs; C.A. Foster
- Publisher
- Elsevier Science
- Year
- 1986
- Weight
- 915 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0167-899X
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✦ Synopsis
An unsteady, two-dimensional heat conduction code has been used to study the performance of swirl-flow-based neutral particle beam targets. The model includes the effects of two-phase heat transfer and asymmetric heating of tubular elements. The calorimeter installed in the Medium Energy Test Facility, which has been subjected to 30-s neutral beam pulses with incident heat flux intensities of >/5 kW/cm-', has been modeled. The numerical results indicate that local heat fluxes in excess of 7 kW/cm-" occur at the water-cooled surface on the side exposed to the beam. This exceeds critical heat flux limits for uniformly heated tubes with straight flow by approximately a factor of 5. The design of a plasma limiter based on swirl flow heat transfer is presented.