期刊
JOURNAL OF FLUID MECHANICS
卷 525, 期 -, 页码 105-113出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0022112004002630
关键词
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An analytical study of the asymptotic behaviour of descending spikes is carried out for the idealized limit of an inviscid, incompressible fluid without surface tension, bounded by a vacuum. A self-similar solution is obtained for the shape of the free surface at the spike tip, yielding the evolution in time of the surface curvature there. The approach to free-fall acceleration is shown to follow an inverse power law in time. Results are given for both planar (two-dimensional) and axisymmetric spikes. Potential areas of application include ablation-front dynamics in inertial-confinement fusion.
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