Laminar - turbulent transition in the propagation of height contained hydraulic fracture

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We investigate two hydraulic stimulation stages performed in April 2022 at the Utah FORGE enhanced geothermal system test site using analytical solutions and numerical modeling of fluid-induced tensile and shear rupture problems. These stimulation stages d ...

Modeling the 3D internal crack under compression entails complex fracture mechanics (mode I-II-III fracture), resulting in substantial computational costs and challenges in characterizing fracture morphology characterization for Phase Field Method (PFM) si ...

We consider fluid flows, governed by the Navier-Stokes equations, subject to a steady symmetry-breaking bifurcation and forced by a weak noise acting on a slow timescale. By generalizing the multiple-scale weakly nonlinear expansion technique employed in t ...

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This article investigates the effects of voids, joint geometry, and test conditions on the quasi-static Mode I fracture performance of thick adhesive Double Cantilever Beam (DCB) joints such as those prevailing in wind industry and shipbuilding. The specim ...

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This paper establishes a mean-field equation set and an energy theorem to provide a theoretical basis in view of the development of self-consistent, physics-based turbulent transport models for mean-field transport codes. A rigorous averaging procedure ide ...

Simulations of plasma turbulence in a linear plasma device configuration are presented. These simulations are based on a simplified version of the gyrokinetic (GK) model proposed by Frei et al. [J. Plasma Phys. 86, 905860205 (2020)], where the full-F distr ...

Water is ubiquitous within the pore space of rocks and has been shown to affect their physical and mechanical behaviour. Indeed, water can act on the rock strength via mechanical (i.e., reducing the effective stresses) or chemical effects (e.g., mineral di ...

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In impermeable media, a hydraulic fracture can continue to expand even without additional fluid injection if its volume exceeds the limiting volume of a hydrostatically loaded radial fracture. This limit depends on the mechanical properties of the surround ...

Hydraulic fractures are driven by an internal fluid pressure exceeding the minimum compressive stress, propagating in a direction perpendicular to the latter. This class of tensile fractures has gained interest over the last fifty years due to the developm ...

Hydraulic fractures are tensile fractures that occur in solid materials due to the natural intrusion or anthropogenic injection of a viscous fluid into a fracture channel. The deliberate creation of hydraulic fractures is part of an industrial technology h ...

Segmented micro-CT images of flow fronts produced by UV-flow freezing. Front morphologies correspond to capilary-dominated, equilibrated and viscous-dominated flow regimes. ...

We study the stability of laminar wakes past three-dimensional rectangular prisms. The width-to-height ratio is set to W/H = 1.2, while the length-to-height ratio 1/6 < L/H < 3 covers a wide range of geometries from thin plates to elongated Ahmed bodies. F ...

Whether used to enhance the hydrocarbon production from low permeability rocks or to measure the minimum in-situ principal stress in rock formations, height growth of a hydraulic fracture above the formation of interest is a key metric for the design of su ...

Solid particulate additives are sometimes used to promote the uniform growth of multiple hydraulic fractures in horizontal oil and gas wells. The principle is that solid particulates block, accumulate, and form larger porous plugging zones preferentially a ...

The Obukhov-Corrsin theory of scalar turbulence [21, 54] advances quantitative predictions on passive-scalar advection in a turbulent regime and can be regarded as the analogue for passive scalars of Kolmogorov's K41 theory of fully developed turbulence [4 ...

The usage of microfluidics for automated and fast immunoassays has gained a lot of interest in the last decades. This integration comes with certain challenges, like the reconciliation of laminar flow patterns of micro-scale systems with diffusion-limited ...

Laminar - turbulent transition in the propagation of height contained hydraulic fracture

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The Utah FORGE 2022 hydraulic stimulations: tensile hydraulic fractures or/and fluid-induced dilatant shear ruptures?

An adaptive phase field approach to 3D internal crack growth in rocks

Noise-induced transitions past the onset of a steady symmetry-breaking bifurcation: The case of the sudden expansion

Two-dimensional quasi-static delamination in composite laminates under Mode-I and Mode-II conditions

Mode I fracture of thick adhesively bonded GFRP composite joints for wind turbine rotor blades

The effect of pressure-anisotropy-driven kinetic instabilities on magnetic field amplification in galaxy clusters

An improved analytical framework for flow prediction inside and downstream of wind farms

Mean-field transport equations and energy theorem for plasma edge turbulent transport

Full-F turbulent simulation in a linear plasma device using a gyro-moment approach

Water weakening and the compressive brittle strength of carbonates: Influence of fracture toughness and static friction

Nonlinear simulation of plasma turbulence using a gyrokinetic moment-based approach

Three-dimensional buoyant hydraulic fractures: finite volume release

Propagation of planar three-dimensional buoyant hydraulic fractures

Three-dimensional hydraulic fracture propagation in homogeneous and heterogeneous media

Three-dimensional micro-CT images of UV-frozen flow fronts recorded at different flow regimes

From thin plates to Ahmed bodies: linear and weakly nonlinear stability of rectangular prisms

Elongated hydraulic fracture emerging from layers of alternating fracture toughness

Modeling of solids particle diversion to promote uniform growth of multiple hydraulic fractures

Anomalous Dissipation and Lack of Selection in the Obukhov-Corrsin Theory of Scalar Turbulence

Acoustofluidic large-scale mixing for enhanced microfluidic immunostaining for tissue diagnostics