Yielding to stress: recent developments in viscoplastic fluid mechanics
The archetypal feature of a viscoplastic fluid is its yield stress: If the material is not sufficiently
stressed, it behaves like a solid, but once the yield stress is exceeded, the material flows like …
stressed, it behaves like a solid, but once the yield stress is exceeded, the material flows like …
Simple yield stress fluids
I Frigaard - Current Opinion in Colloid & Interface Science, 2019 - Elsevier
Recent years have seen a flurry of research on yield stress fluids, approached from different
perspectives (physicochemical, rheological and fluid mechanical), considering different …
perspectives (physicochemical, rheological and fluid mechanical), considering different …
Yield stress fluid flows in superhydrophobic channels: From cree** to inertial regime
In this work, inertial flows of a yield stress fluid in a channel equipped with a
superhydrophobic groovy wall are studied through numerical computations. Assuming an …
superhydrophobic groovy wall are studied through numerical computations. Assuming an …
Confined flow of suspensions modelled by a frictional rheology
We investigate in detail the problem of confined pressure-driven laminar flow of neutrally
buoyant non-Brownian suspensions using a frictional rheology based on the recent …
buoyant non-Brownian suspensions using a frictional rheology based on the recent …
Bingham and herschel-bulkley fluids flow regimes in rough-walled rock fractures
Flow of typical non-Newtonian fluids such as cement grouts can experience different
regimes as the Reynolds number (Re) changes, understanding of which is important for …
regimes as the Reynolds number (Re) changes, understanding of which is important for …
Poiseuille flow of a Bingham fluid in a channel with a superhydrophobic groovy wall
Plane Poiseuille flow of a Bingham fluid in a channel armed with a superhydrophobic (SH)
lower wall is analysed via a semi-analytical model, accompanied by complementary direct …
lower wall is analysed via a semi-analytical model, accompanied by complementary direct …
On the lubrication paradox and the use of regularisation methods for lubrication flows
A Putz, IA Frigaard, DM Martinez - Journal of Non-Newtonian fluid …, 2009 - Elsevier
In this paper we complete the analysis of the flow of a Bingham fluid along a wavy-walled
channel. We confirm numerically the results of [I. Frigaard, D. Ryan, Flow of a visco-plastic …
channel. We confirm numerically the results of [I. Frigaard, D. Ryan, Flow of a visco-plastic …
Residual drilling mud during conditioning of uneven boreholes in primary cementing. Part 1: Rheology and geometry effects in non-inertial flows
We perform a detailed computational study of the flow of a Bingham fluid along a narrow
channel, with one locally uneven wall. This uneven section of the channel represents a …
channel, with one locally uneven wall. This uneven section of the channel represents a …
The occurrence of fouling layers in the flow of a yield stress fluid along a wavy-walled channel
Slow flows of Bingham fluids through wavy-walled channels have stationary fouling layers if
the amplitude of the wall perturbation h exceeds some critical value hf. We have …
the amplitude of the wall perturbation h exceeds some critical value hf. We have …
Observation of laminar–turbulent transition of a yield stress fluid in Hagen–Poiseuille flow
We investigate experimentally the transition to turbulence of a yield stress shear-thinning
fluid in Hagen–Poiseuille flow. By combining direct high-speed imaging of the flow …
fluid in Hagen–Poiseuille flow. By combining direct high-speed imaging of the flow …