TY - JOUR
TI - Study on seepage characteristics of cross fractures in adjacent and convective flow modes
AU - Yang Zun-Dong
AU - Liu Zhao
AU - Xie Jing
AU - Tang Rui-Feng
AU - Gu Xiao-Bin
JN - Thermal Science
PY - 2023
VL - 27
IS - 1
SP - 527
EP - 535
PT - Article
AB - 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.