Numerical simulation of dust-gas cloud rise from explosion near Earth's surface

Valery M. Khazins; Sergey P. Soloviev

doi:10.1117/12.2574670

12 November 2020 Numerical simulation of dust-gas cloud rise from explosion near Earth's surface

Proceedings Volume 11560, 26th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics; 115602I (2020) https://doi.org/10.1117/12.2574670
Event: 26th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 2020, Moscow, Russian Federation

Abstract

Pollution of the atmosphere and territories adjacent to opencast mine by mineral particles during explosive breaking of rock mass is one of the factors affecting the environmental situation in the vicinity of quarries and reducing the transparency of the surface layer of the atmosphere. A significant effect of wind on particle transfer begins after the completion of the rise of a dust-gas cloud formed by an explosion on the surface of the earth. Numerical simulation was used to determine the characteristics of a dust cloud starting from the moment of formation of the fireball until the cloud reaches hydrostatic equilibrium. The numerical model was improved in order to calculate the dynamics of the dust cloud for charges with a mass of 1 to 1000 tons of TNT. The fireball parameters were set based on the data of theoretical and experimental studies. Based on numerical calculations, a qualitative and quantitative analysis of the dynamics of the dust-gas cloud for an explosion with a mass of 500 tons of TNT is carried out. The obtained relations allow one to determine the height of the upper edge and the radius of the cap of dust-gas clouds depending on the energy of the explosion with a mass of 1 to 1000 tons of TNT.

Citation Download Citation

Valery M. Khazins and Sergey P. Soloviev "Numerical simulation of dust-gas cloud rise from explosion near Earth's surface", Proc. SPIE 11560, 26th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 115602I (12 November 2020); https://doi.org/10.1117/12.2574670

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available