A novel self-rotating down-the-hole hammer with impact and rotary functions for directional drilling: Design, modeling, and experiments DOI Creative Commons
Jine Cao, Hongyu Cao, Hongyun Zhang

et al.

Petroleum Science, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

Differentiable finite element method with Galerkin discretization for fast and accurate inverse analysis of multidimensional heterogeneous engineering structures DOI Creative Commons
Xi Wang, Zhen‐Yu Yin, Wei Wu

et al.

Computer Methods in Applied Mechanics and Engineering, Journal Year: 2025, Volume and Issue: 437, P. 117755 - 117755

Published: Jan. 22, 2025

Language: Английский

Citations

4
Exploring debris flow deposit morphology in river valleys: Insights from physical modeling experiments DOI
Cong-jiang Li,

Yu-xiang Hu,

Gang Fan

et al.

Engineering Geology, Journal Year: 2024, Volume and Issue: 332, P. 107465 - 107465

Published: March 1, 2024

Language: Английский

Citations

7
Numerical Simulation of Debris Flow Impact on Pier With Different Cross‐Sectional Shapes Based on Coupled CFD‐DEM DOI Open Access

Zhuhong Wang,

Hang Zhou, Yunzhou Li

et al.

International Journal for Numerical and Analytical Methods in Geomechanics, Journal Year: 2025, Volume and Issue: unknown

Published: March 10, 2025

ABSTRACT Concrete piers located in steep mountainous regions are highly susceptible to damage from debris flows. Existing studies often oversimplify flows as particle or equivalent fluids, neglecting their multiphase characteristics. In this paper, a three‐dimensional numerical model of flow‐bridge interaction is established based on the coupled CFD‐DEM approach. The Hertz–Mindlin (no‐slip) and Navier–Stokes equations employed describe behavior contacts fluid phase, respectively. An interface program compiled using user‐defined functions (UDFs) facilitates transfer information (drag, buoyancy, viscous forces) between particles. accuracy validated by simulation results single‐particle settlement underwater granular collapse. This study conducts detailed investigation into mechanisms flow—bridge piers, considering cross‐sectional shape solid volume fraction. It has been discovered that bridge significantly influences separation points. A power function effectively describes relationship fraction peak impact force coefficient, C d . Simplifying dry fluids may lead an underestimation pressure.

Language: Английский

Citations

0
Non-darcian behavior of two-phase flow in a vertical fracture with tortuous DOI
Jingping Wang, Jiazhong Qian, Lei Ma

et al.

Engineering Geology, Journal Year: 2025, Volume and Issue: unknown, P. 108072 - 108072

Published: April 1, 2025

Language: Английский

Citations

0
Experimental and numerical investigations on failure process and permeability evolution of weathered granite under hydro-mechanical coupling DOI
Huanling Wang, Yizhe Wu, Xiao Qu

et al.

International Journal of Rock Mechanics and Mining Sciences, Journal Year: 2025, Volume and Issue: 191, P. 106117 - 106117

Published: April 15, 2025

Language: Английский

Citations

0
Experimental study on the self-cleaning behavior of slit dams for debris flow hazard mitigation DOI Creative Commons

Diwen Huang,

Yong You,

Hao Sun

et al.

International Journal of Sediment Research, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

Citations

0
A fully resolved SPH-DEM for simulation of debris flows with arbitrary particle shapes impacting flexible barriers DOI
Hao Xiong,

Mengjie Hao,

Debo Zhao

et al.

Acta Geotechnica, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 10, 2025

Language: Английский

Citations

0
Dissipative effects of baffles on the dynamics of debris flow and its impact on downstream structure DOI
Trung‐Kien Nguyen, Nhu H.T. Nguyen, Thanh‐Trung Vo

et al.

Computers and Geotechnics, Journal Year: 2025, Volume and Issue: 184, P. 107246 - 107246

Published: April 8, 2025

Language: Английский

Citations

0
CFD-DEM numerical investigation of the effects of water content and inclination angle on interactions between debris flows and slit dam DOI
Yandong Bi, Yu Huang, Bei Zhang

et al.

Computers and Geotechnics, Journal Year: 2024, Volume and Issue: 170, P. 106273 - 106273

Published: March 27, 2024

Language: Английский

Citations

3
Effects of bed pumice content on lahar erosion: An example from Changbaishan volcano, China DOI
Shengwu Qin,

Jiangfeng Lv,

Shuangshuang Qiao

et al.

Engineering Geology, Journal Year: 2024, Volume and Issue: 336, P. 107560 - 107560

Published: May 19, 2024

Language: Английский

Citations

2