NUMERICAL SIMULATION OF GASDYNAMIC
PROCESSES AND THE DYNAMICS OF DUST
PARTICLES IN CATASTROPHIC VOLCANIC
EXPLOSIONS BY APPLYING TVD SCHEMES

I. M. Kozlov , G. V. Miloshevskii ,
G. S. Romanov , and A. E. Suvorov

UDC 551.590.3

We developed a physicomathematical model to predict 
volcanic explosion-induced gasdynamic phenomena and the dynamics of 
the distribution of particles of ash and dust that precipitate onto 
the earth's surface and that remain in the atmotsphere. We investigated 
the factors and processes that exert an influence on the transport 
of dust particles in the atmosphere. On the basis of the physicomathematical 
model developed, numerical simulation of volcanic explosions of specified 
power and space scale is done, and results on the dynamics of gasdynamic 
flows of air and the distribution of dust particles for different 
instants of time are analyzed.

JEPTER74920199917
JEPTER7492017