Reconstruction of part of an actual blast-wave flow field to agree with experimental data by using numerical method with high identification
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In this paper, on the basis of experimental data of two kinds of chemical explosions, the piston-pushing model of spherical blast-waves and the second-order Godunov-type scheme of finite difference methods with high identification to discontinuity are used to the numerical reconstruction of part of an actual hemispherical blast-wave flow field by properly adjusting the moving bounary conditions of a piston. This method is simple and reliable. It is suitable to the evaluation of effects of the blast-wave flow field away from the explosion center.
KeywordsExperimental Data Mathematical Modeling Flow Field Finite Difference Industrial Mathematic
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- Makino, R.C. and R.E. Shear, Unsteady spherical flow behind a known shock line, BRL Report, No. 1154 (1961).Google Scholar
- Dewey, J.M. and D.J. McMillin, The properties of a blast wave produced by large-scale detonable gas explosion,Proc. 7th Inter. Symp. Mil. Appl. of Blast Simul.,1 (1981), 6.6-1–6.6-18.Google Scholar
- Celmins, A., Reconstruction of a blast field from selected pressure observation,Proc. 7th Inter. Symp. Mil. Appl. of Blast Simul.,1 (1981), 2.5-1–2.5-17.Google Scholar
- Lau, S.C.M. and J.J. Gottlieb, Numerical reconstruction of part of an actual blast-wave flow field to agree with available experimental data,UTIAS Tech. Note, 251 (1984).Google Scholar
- Courant, R. and K.O. Friedrichs,Supersonic Flow and Shock Waves, Interscience Publishers, New York (1984).Google Scholar
- Sadek, H.S.I. and J.J. Gottlieb, Initial decay of flow properties of planar, cylindrical and spherical blast waves,UTIAS Tech. Note, 244 (1983).Google Scholar