The Regular And Mach Reflections Of Shock
Waves From Explosions In Real Air
Author(s)
F. Zhou, Z. Xu & Y. G. Yu
Abstract
Systematic research was carried out for shock wave reflection problems from an
explosion in real air. When shock waves from an explosion on the ground meet
with the mountain terrain of positive slope, a single reflection appears. When an
aerial explosion above-ground is presented, on basis of the interaction of the
incident shock wave with the ground, continuous reflection is produced. If the
explosion occurs in a tunnel, due to restriction of the narrow tunnel space, a
complicated interaction of shock waves with the walls and reflected shock waves
is produced. A calculation of regular and Mach reflection of shock waves from
an explosion is conducted with real air state equations. In a regular reflection
region, we adopt the variable γ regular reflection theory and the
reflectiontermination condition is controlled by the sonic ray angle. In a Mach
reflection region, we adopt the Russian scientist Korotkov method to establish
the linear analysis solution for a small slope angle and give the start condition for
Mach reflection and the limit control condition of Mach reflection for different
explosions. Our study leads to a curve diagram showing the relation of ground
shock waves’ reflection overpressure and dynamic pressure versus incident
overpressure and incident angle.
Keywords: regular reflection of shock wave, Mach reflection of shock wave,
explosion real air state equations interaction of shock wave with the walls.
Keywords
regular reflection of shock wave, Mach reflection of shock wave,
explosion real air state equations interaction of shock wave with the walls
Related Book
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