Accession Number:

AD0759404

Title:

A Study of an Early Time Buoyant Fireball Model.

Descriptive Note:

Topical rept.,

Corporate Author:

MISSION RESEARCH CORP SANTA BARBARA CALIF

Personal Author(s):

• Carron,Neal J.

Report Date:

1973-04-01

Pagination or Media Count:

30.0

Abstract:

The author studies the early time hydrodynamic structure of a buoyant fireball model. The problem of a buoyant sphere of fluid in a sea of heavier fluid is formulated in terms of one-dimensional integro-differential equations. A numerical solution to these unstable equations which involves approximating the boundary between the two fluids by a polygon is presented. The numerical approach involves no stabilizing or damping parameters and appears to give a satisfactory solution up to the time the buoyant sphere begins to pass from a kidney bean shape to a jelly-roll. Author

Descriptors:

• (*EXPLOSION EFFECTS
• FLOW FIELDS)
• PARTIAL DIFFERENTIAL EQUATIONS
• EQUATIONS OF MOTION
• INCOMPRESSIBLE FLOW
• NUMERICAL ANALYSIS
• HYDRODYNAMICS

Subject Categories:

• Explosions
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE