Blast Wave
A blast wave is a sharply defined wave of increased pressure rapidly propagated through a surrounding medium from a center of detonation or similar disturbance [Military Dictionary].
The blast wave generated by an explosion consists of a shock front in which the pressure rises virtually instantaneously, followed by an expansion wave in which the pressure returns to its ambient value [Zalosh, p. 375].
This shock front moves supersonically, i.e., speed more than the speed of sound in the air ahead of it, with discontinuity in pressure, density, and particle velocity across the front. The blast wave differs from the acoustic wave as it later moves at sonic speed and does not shock up [Goel, M., p.300].
As a result of the explosion and the blast wave, there is a blast effect. It is the destruction of or damage to structures and personnel by the force of an explosion on or above the surface of the ground. The blast effect may be contrasted with the cratering and ground-shock effects of a projectile or charge that goes off beneath the surface [Department of Defense Dictionary of Military and Associated Terms].
Department of Defense Dictionary of Military and Associated Terms: short title: Joint pub 1-02. (1998). Washington, D.C.: Joint Chiefs of Staff. Goel, M., Vasant, M., & Gupta, A. (2012). An abridged review of Blast Wave Parameters. Defence Science Journal
Military Dictionary (Letter Group B). MilitaryFactory. Retrieved from: https://www.militaryfactory.com/dictionary/military-terms-alphabet-list.php?letter_group=B