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An experimental study of the explosion generated by a pressurized sphere

Published online by Cambridge University Press:  28 March 2006

D. W. Boyer
D. W. Boyer
Affiliation:
Institute of Aerophysics, University of Toronto, Toronto, Canada
Now at Cornell Aeronautical Laboratory, Inc., Buffalo, N. Y., U.S.A.
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Abstract

An experimental investigation of the explosions of 2 in. diameter glass spheres under high internal pressure has been made. The spheres were initially filled with air or helium at 400 and 326 p.s.i., respectively, and were exploded in air at atmospheric pressure. Experiments on the simulation of high-altitude explosions are also described. Schlieren and spark shadowgraph records of explosion phenomena, and pressure records of the reflexion of the spherical shock wave at various radii, are presented.

An account of some initial experiments on the implosion of 5 in. diameter glass spheres is given. The results were not very satisfactory because of the failure of the spheres to shatter in a desirable manner while under an external pressure of 65 p.s.i.

Numerical solutions to the air and helium sphere explosions are described and the experimental wave phenomena are shown to be in good quantitative agreement with the theoretical predictions, in that they exhibit all the main features that were predicted and are modified only by the physical limitations of the glass diaphragm. A formation process is associated with the spherical shock waves in practice, resulting in initial shock velocities which are lower than the theoretical values.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 9 , Issue 3 , November 1960 , pp. 401 - 429
Copyright
© 1960 Cambridge University Press

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References

Boyer, D. W. 1959 Spherical explosions and implosions. Institute of Aerophysics, UTIA Report, no. 58.Google Scholar
Boyer, D. W., Brode, H. L., Glass, I. I. & Hall, J. G. 1958 Blast from a pressurized sphere. Institute of Aerophysics, UTIA Report, no. 48.Google Scholar
Brode, H. L. 1955a J. Appl. Phys. 26, 766.
Brode, H. L. 1955b The blast from a sphere of high pressure gas. Rand Corp. Report, no. P-582.Google Scholar
Brode, H. L. 1956 Point source explosion in air. Rand Corp. Report, no. RM-1824-AEC.Google Scholar
Brode, H. L. 1959 Phys. Fluids 2, p. 217.
Butler, D. S. 1956 The stability of converging spherical and cylindrical shock waves. A.R.D.E. Report, no. (B) 18/56.Google Scholar
Goldstine, H. H. & Von Neumann, J. 1955 Comm. Pure Appl. Math. 8, 327.
Harris, E. G. 1956 Exact and approximate treatments of the one-dimensional blast wave. NRL Report, no. 4858.Google Scholar
Latter, R. 1955 J. Appl. Phys. 26, 954.
Lin, S. C. 1954 J. Appl. Phys. 25, 54.
Von Neumann, J. 1944 Shock hydrodynamics and blast waves. Los Alamos Scientific Laboratory Report, no. AECD-2860.Google Scholar
Von Neumann, J. & Richtmyer, R. D. 1950 J. Appl. Phys. 21, 232.
Perry, R. W. & Kantrowitz, A. 1951 J. Appl. Phys. 22, 878.
Plesset, M. S. 1954 J. Appl. Phys. 25, 96.
Schardin, H. 1954 Comm. Pure Appl. Math. 7, 223.
Taylor, G. I. 1950a Proc. Roy. Soc. A, 201, 159.
Taylor, G. I. 1950b Proc. Roy. Soc. A, 201, 192.