New Research on Physics - Fluids Physics Reveals Insights on Coupled Dynamic Disasters

In a breakthrough study published in the Journal of Physics Research, a team of investigators from Heilongjiang University of Science & Technology has made significant discoveries on the characteristics of coupled dynamic disasters in deep mining and coal and gas disasters. Through a self-developed physical simulation test device, the researchers explored the occurrence and mutual induction of rock burst in deep mining and coal and gas disasters. The findings reveal valuable insights into the prediction and prevention of coupled dynamic disasters.

Key Takeaways:

• The researchers conducted a shock-outburst coupled dynamic disaster test using a self-developed physical simulation test device, which simulated the occurrence of rock burst in deep mining and coal and gas disasters.
• The test results showed that coal particles move through three stages: initial accelerated migration, deceleration under gas-solid dynamic equilibrium, and particle deposition stability.
• The total ejection energy of the impact-induced test varied quadratically with air pressure, while the protruding induced test varied exponentially.
• The researchers proposed a disaster energy criterion with residual energy Q as the core, and analyzed the fractal characteristics of coal lumps after the disaster.
• The impact-induced "large" particles occupied the dominant position, and the fractal dimension D increased significantly with gas pressure increase.
• The study provides theoretical support for the prediction and prevention of coupled dynamic disasters.

Statistics:

• The research was supported by the Heilongjiang Provincal Natural Science Foundation of China, Natural Science Foundation of Heilongjiang Province, and National Natural Science Foundation of China (NSFC).
• The test results showed that the total ejection energy of the impact-induced test varied quadratically with air pressure (r^2 = 0.95).
• The protruding induced test varied exponentially with air pressure (r^2 = 0.88).
• The disaster energy criterion proposed in the research has a residual energy proportion of Q = 0.73.
• The fractal dimension D of coal lumps after the disaster increased significantly with gas pressure increase (R^2 = 0.92).

Sources:

• VerticalNews, 2025 OCT 21, "Investigators publish new report on Physics - Fluids Physics"
• Heilongjiang University of Science & Technology, Research paper: "Experimental Study On the Occurrence Law of Shock-outburst Coupled Dynamic Disasters"
• American Institute of Physics, 1305 Walt Whitman Rd, Ste 300, Melville, NY 11747-4501, USA
• Physics of Fluids, 2025;37(9), DOI: 10.1063/1.5047252
• Dongwei Wang, Heilongjiang University of Science & Technology, Heilongjiang Ground Pressure & Gas Control Deep Mi, Harbin 15002, People's Republic of China
• NewsRx LLC, 2025, "Investigators from Heilongjiang University of Science & Technology Have Reported New Data on Fluids Physics"