HYDRODYNAMIC CONCEPTS SELECTED TOPICS FOR UNDERWATER NUCLEAR EXPLOSIONS
Abstract
This paper gives a narrative description of the hydrodynamic concepts which are important for the understanding of underwater explosion processes with particular emphasis given to the physical background. Mathematical developments are entirely omitted or kept to a minimum. The paper describes the concepts of the various fluid motions and fluid models involved in explosion phenomena. The properties of the shock front are described and the interrelationship between the formation of the nuclear bubble and the shock front is pointed out. The properties of high amplitude waves are outlined using Riemann's description. The formation of underwater explosion bubbles is shown to be a hydrodynamic consequence of the spherical pressure wave emitted by the explosion. Such a wave always produced a radial mass flow directed outward, the afterflow, which must lead to the formation of a cavity. The acoustic approximation of pressure waves is discussed in Appendix A. Appendix B contains comments on the entropy concept.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 15, 1966
- Accession Number
- AD0803113
Entities
People
- Hans G. Snay
Organizations
- Naval Ordnance Laboratory