TY  - JOUR
PY  - 2021//
TI  - The reflection of a blast wave by a very intense explosion
JO  - Proceedings. Mathematical, physical, and engineering sciences
A1  - Cook, Andrew W.
A1  - Bauer, Joseph D.
A1  - Spriggs, Gregory D.
SP  - e20210154
EP  - e20210154
VL  - 477
IS  - 2250
N2  - We demonstrate that the geometric similarity of Taylor's blast wave persists beyond reflection from an ideal surface. Upon impacting the surface, the spherical symmetry of the blast wave is lost but its cylindrical symmetry endures. As the flow acquires dependence on a second spatial dimension, an analytic solution of the Euler equations becomes elusive. However, the preservation of axisymmetry, geometric similarity and planar symmetry in the presence of a mirror-like surface causes all flow solutions to collapse when scaled by the height of burst (HOB) and the shock arrival time at the surface. The scaled blast volume for any yield, HOB and ambient air density follows a single universal trajectory for all scaled time, both before and after reflection.<p />  <p>Language: en</p>
LA  - en
SN  - 1364-5021
UR  - http://dx.doi.org/10.1098/rspa.2021.0154
ID  - ref1
ER  -