Models and methods of aerogasdynamic calculations for ventilation networks in underground mines: Review

The article offers a review of the modern methods available for modeling and calculating aerogasdynamic processes in ventilation networks in underground mines. A special attention is paid to the latest advances in computational fluid dynamics (CFD). The foundations of CFD and the main procedures of high quality CFD modeling are described: the mesh convergence; the independence of the solution from a time step chosen; the verification of CFD models. The models of turbulence, which are most often used in the problems on mine ventilation, and their application ranges are presented. The R&D projects connected with CFD modeling of mine ventilation are reviewed. The main CFD-based research subjects in mine ventilation are: ventilation flows and ventilation methods in blind roadways; gas dynamics in mined-out voids and caving zones; mine fires; coal self-heating and endogenous fires; methane and dust dynamics and control. The relevance of the presented research rests upon the fact that CFD methods can greatly reduce the amount of physical experimentation as computation cost of CFD modeling currently gets lower thanks to higher-capacity computers and enhanced refinement of computer-aided models of physical systems under testing, while the full-scale and lab tests become more expensive, vice versa.

Keywords: mine ventilation, turbulence models, emergency ventilation mode, computational fluid dynamics, gas dynamics, CFD modeling, self-heating, endogenous fires, mine fires, dust control, methane control.
For citation:

Kazakov B. P., Kolesov E. V., Nakariakov E. V., Isaevich A. G. Models and methods of aerogasdynamic calculations for ventilation networks in underground mines: Review. MIAB. Mining Inf. Anal. Bull. 2021;(6):5-33. [In Russ]. DOI: 10.25018/0236_1493_2021_6_0_5.

Acknowledgements:

The study was supported by the Russian Foundation for Basic Research, Project No. 19-15-50125.

Issue number: 6
Year: 2021
Page number: 5-33
ISBN: 0236-1493
UDK: 622.4; 004.942; 001.891.57
DOI: 10.25018/0236_1493_2021_6_0_5
Article receipt date: 06.08.2020
Date of review receipt: 10.09.2020
Date of the editorial board′s decision on the article′s publishing: 10.05.2021
About authors:

B.P. Kazakov1, Dr. Sci. (Eng.), Professor, Chief Researcher,
E.V. Kolesov1, Junior Researcher, e-mail: kolesovev@gmail.com,
E.V. Nakariakov1, Engineer,
A.G. Isaevich1, Cand. Sci. (Eng.), Head of Sector,
1 Mining Institute, Ural Branch of Russian Academy of Sciences, 614007, Perm, Russia.

 

For contacts:

E.V. Kolesov, e-mail: kolesovev@gmail.com.

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