Results
Title

Experimental model of the role of cracks in the mechanism of explosive eruption of St. Helens-80.

Authors

Kedrinskii, V.; Skulkin, A.

Abstract

A unique mini model of explosive volcano eruption through a formed system of cracks is developed. The process of crack formation and development is simulated by electric explosion of a conductor in a plate of optically transparent organic glass submerged into water. The explosion of a wire aligned with a through hole in the plate generates shock-wave loading along the plate and forms cracks. The fundamental role of high velocity flow in crack wedging by a high power hydrodynamic flow of a pulsating explosion cavity has been demonstrated.

Subjects

VOLCANIC eruptions; SURFACE cracks; VELOCITY; HYDRODYNAMICS; FLUID dynamics

Publication

Technical Physics, 2017, Vol 62, Issue 7, p1024

ISSN

1063-7842

Publication type

Academic Journal

DOI

10.1134/S1063784217070052