THERMAL SCIENCE

International Scientific Journal

Zun-Dong Yang

,

Zhao Liu

,

Jing Xie

,

Rui-Feng Tang

,

Xiao-Bin Gu

STUDY ON SEEPAGE CHARACTERISTICS OF CROSS FRACTURES IN ADJACENT AND CONVECTIVE FLOW MODES

ABSTRACT
The distribution of fractures in the underground rock mass is complex, so it is of great significance to study the parameter characteristics of fracture seepage for geothermal exploitation, land subsidence, and other fields. Based on the Weierstrass-Mandelbrot function, several X-shaped fracture models with different roughness are established, and the fracture seepage law under different roughness and inlet pressure is studied. At the same time, the center (cross-region) of the X-shaped fracture is selected as the research object, and the seepage difference characteristics of the cross-region under the two inlet modes of adjacent flow and convective flow are compared and analyzed. The results show that the outlet velocity of fracture fluid is inversely proportional to the fractal dimension and is directly proportional to the inlet pressure.
KEYWORDS
X-shaped fracture, fracture seepage, fractal dimension, cross-region, adjacent and convective flow
PAPER SUBMITTED: 2022-08-28
PAPER REVISED: 2022-11-18
PAPER ACCEPTED: 2022-11-22
PUBLISHED ONLINE: 2023-01-21
DOI REFERENCE: https://doi.org/10.2298/TSCI220828013Y
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2023, VOLUME 27, ISSUE Issue 1, PAGES [527 - 535]
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Study on seepage characteristics of cross fractures in adjacent and convective flow modes

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence