Measurement and Simulation of Flow in a Section of a Mine Gallery

Jakub Janus and Jerzy Krawczyk
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Jakub Janus: Strata Mechanics Research Institute, The Polish Sciences Academy, Reymonta 27, 30-059 Kraków, Poland
Jerzy Krawczyk: Strata Mechanics Research Institute, The Polish Sciences Academy, Reymonta 27, 30-059 Kraków, Poland

Energies, 2021, vol. 14, issue 16, 1-15

Abstract: Research work on the air flow in mine workings frequently utilises computer techniques in the form of numeric simulations. However, it is very often necessary to apply simplifications when building a geometrical model. The assumption of constant model geometry on its entire length is one of the most frequent simplifications. This results in a substantial shortening of the geometrical model building process, and a concomitant shortening of the time of numerical computations; however, it is not known to what extent such simplifications worsen the accuracy of simulation results. The paper presents a new methodology that enables precise reproduction of the studied mine gallery and the obtaining of a satisfactory match between simulation results and in-situ measurements. It utilises the processing of data from laser scanning of a mine gallery, simultaneous multi-point measurements of the velocity field at selected gallery cross-sections, unique for mine conditions, and the SAS turbulence model, recently introduced to engineering analyses of flow issues.

Keywords: computational fluid dynamics; numerical model geometry; laser scanning (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (7)

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