Characteristics and factors influencing the nonlinear seepage of paste material injected into a fractal-like tree fracture bifurcation network around coal seam boreholes

Physics of Fluids, Год журнала: 2025, Номер 37(1)

Опубликована: Янв. 1, 2025

The sealing efficiency of pressure grouting in coal seam boreholes is pivotal for enhancing gas extraction and mitigating environmental risks. Therefore, this study integrated theoretical modeling approaches to investigate the development fractures around boreholes, elucidate migration behavior non-Newtonian slurries within fracture networks, analyze effects structural parameters fractal-like tree networks on paste material permeation. First, a fractal-like, tree-like bifurcation network introduced describe distribution spatial fractional constitutive equation fluid used solve nonlocality flow potential correlation particles inside fluid. Then, seepage model drilling constructed, associated characteristics are examined. research reveals direct influence critical such as space derivative order (α), opening ratio (β), length (γ), maximum series (m), fractal dimension (De), tortuosity (DT), primary (l0), (emax), number bifurcations per level (s) materials. Specifically, it can be obtained by that permeability positively correlated with β, s, De, emax, while negatively α, γ, m, DT, l0. These findings provide basis understanding fluids engineering coal-rock developing efficient materials seams.

Язык: Английский

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Numerical investigation of heat and mass transfer for unsteady multiphase flow in a vented cavity filled with hybrid nanofluid

Alexandria Engineering Journal, Год журнала: 2025, Номер 119, С. 451 - 464

Опубликована: Фев. 8, 2025

Язык: Английский

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Isogeometric modeling and vibroacoustic analysis of a symmetrically laminated thin plate coupled with an acoustic cavity

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Фев. 28, 2025

This study presents vibroacoustic modeling and analysis of symmetrically laminated thin plate-cavity coupled systems. The plate, cavity, their coupling are characterized by classical plate theory, the Helmholtz equation, a displacement–pressure formulation, respectively. governing equations for systems derived using non-uniform rational B-splines (NURBS) variational formulations. isogeometric (IGA) approach is employed to construct exact geometric models solve discretized first time. Numerical results, validated against other available data, reveal convergence accuracy present method. explores characteristics two specific systems: rectangular plate-trapezoid cavity system an elliptical system. Parametric investigations examine effects shapes, boundary conditions, acoustic media, lamination schemes on characteristics. These innovative findings provide valuable theoretical guidelines designing offer benchmark solutions future research.

Язык: Английский

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Temperature effects on the neuronal dynamics and Hamilton energy

Chaos Solitons & Fractals, Год журнала: 2025, Номер 195, С. 116325 - 116325

Опубликована: Март 19, 2025

Язык: Английский

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Coupled effect of Pressure Corrections and Heat-Mass Transfer on Rayleigh-Taylor Instability in Casson Fluid Layer

Chinese Journal of Physics, Год журнала: 2025, Номер unknown

Опубликована: Апрель 1, 2025

Язык: Английский

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