A Note on the Pressure Field Within an Outward Moving Free Annulus
- 1 May 1991
- journal article
- research article
- Published by Taylor & Francis in Fusion Technology
- Vol. 19 (3P2A) , 727-731
- https://doi.org/10.13182/fst91-a29431
Abstract
In both earlier and current ICF blanket designs a problem of a free annulus radial expansion emerges after microexplosion. If the annulus fractures, it could increase the total liquid surface area available for condensation by hundreds times. Whether the fragmentation can happen or not depends on the internal pressure and surface stability. In this paper a model based on incompressible cylindrically symmetric flow is used to get a theoretical solution similar to that of the Rayleigh’s solution for bubble dynamics. The pressure inside the annulus is found positive at all time but the peak is lowering during the expansion. Besides, both surfaces are Taylor stable during such motion. Thus, it is concluded that an annulus in outward radial motion will not cavitate or breakup.Keywords
This publication has 3 references indexed in Scilit:
- On the motion following isochoric heating of concentric liquid annuliNuclear Engineering and Design, 1980
- The instability of liquid surfaces when accelerated in a direction perpendicular to their planes. IProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1950
- VIII. On the pressure developed in a liquid during the collapse of a spherical cavityJournal of Computers in Education, 1917