Effect of inertial migration of particles on flow transitions of a suspension Taylor-Couette flow

Baroudi, Lina; Majji, Madhu V.; Morris, Jeffrey F.

doi:10.1103/physrevfluids.5.114303

Cited by 13 publications

(39 citation statements)

References 30 publications

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“…It should be noted that Majji & Morris (2018) and Baroudi, Majji & Morris (2020) experimentally observed the inertial migration that particles migrate to an equilibrium location near the middle of the annulus with an offset toward the inner cylinder for very dilute suspensions ( ϕ b = 0.001 for d / a = 40 and 0.01 for d / a = 60.8); however, none of the previous studies reported inertial migration and the corresponding concentration profiles for semidilute and concentrated suspensions. One expects that for very dilute suspensions the lift force acting on the particles is dominant, leading to particle migration towards the middle between walls as theoretically verified by Cox & Brenner (1968), Ho & Leal (1974), Vasseur & Cox (1976), McLaughlin (1993), Hogg (1994) and Asmolov (1999).…”

Section: Resultsmentioning

confidence: 99%

Flow instability and transitions in Taylor–Couette flow of a semidilute non-colloidal suspension

Kang

Mirbod

2021

J. Fluid Mech.

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Section: Resultsmentioning

confidence: 99%

Flow instability and transitions in Taylor–Couette flow of a semidilute non-colloidal suspension

Kang

Mirbod

2021

J. Fluid Mech.

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“…2019; Baroudi et al. 2020; Dash et al. 2020; Ramesh & Alam 2020) the results of which are briefly reviewed in what follows.…”

Section: Literature Reviewmentioning

confidence: 99%

“…2016; Baroudi et al. 2020; Rashedi, Ovarlez & Hormozi 2020). In the case of dilute suspension, if the Reynolds number is low, the particles follow the streamlines, otherwise, in high Reynolds, particles migrate to specific locations in the flow cross-section.…”

Section: Literature Reviewmentioning

confidence: 99%

“…The study of such suspensions in TCF benefited from recent experimental effort (Majji & Morris 2018; Majji et al. 2018; Ramesh, Bharadwaj & Alam 2019; Baroudi, Majji & Morris 2020; Dash, Anantharaman & Poelma 2020; Ramesh & Alam 2020), theoretical effort (Ali et al. 2002; Gillissen & Wilson 2019) and numerical effort (Kang & Mirbod 2021), investigating the effects of particles on inertial transition and particle distribution, extending the corpus of existing studies in other geometries such as pipe (Matas, Morris & Guazzelli 2003) or channel flows (Lomholt & Maxey 2003; Loisel et al.…”

Section: Literature Reviewmentioning

confidence: 99%

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Torque scaling at primary and secondary bifurcations in a Taylor–Couette flow of suspensions

2022

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The Taylor–Couette flow of non-colloidal, neutrally buoyant spherical particle suspensions in the $\phi =0\,\%-28\,\%$ concentration range and (17–250) Reynolds number ( $\mathcal {R})$ range is studied using synchronized flow visualization and torque measurements. Both methods are applied in ramp-up/down (acceleration/deceleration of the inner cylinder) experiments to detect the various flow structure states and bifurcation natures, their critical conditions and their lifetime in $\mathcal {R}$ range. Torque measurement allows us to discuss the evolution of the (pseudo) Nusselt number, $\mathcal {N}$ , and friction coefficient with $\mathcal {R}$ or alternatively the Taylor number, Ta. Flow visualization brings additional information on the unsteady dynamics of flow states. For concentrations higher than $\phi =6\,\%$ , two unsteady (spiral vortex flow, wavy vortex flow) and one steady (Taylor vortex flow) flow state are observed in both ramp-up/down experiments. Hysteretic behaviour is reported for some primary, secondary and tertiary bifurcations, which are thus found to be subcritical. A critical concentration is observed at $\phi =15\,\%$ for the range of $\mathcal {R}$ at which spiral vortex flow is encountered. Characteristic frequencies of unsteady flow state (spiral vortex flow, wavy vortex flow) for different suspension concentrations are evaluated. Finally, three hydrodynamic concentration subregimes are identified for the first time, with their distinct sets of concentration-dependent critical conditions, torque scaling exponents and friction coefficients.

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“…Dutcher & Muller 2013;Martínez-Arias & Peixinho 2017;Lacassagne et al 2020;Lacassagne, Cagney & Balabani 2021; among many others) and particle suspensions in Newtonian solvents (Majji, Banerjee & Morris 2018;Gillissen & Wilson 2019;Ramesh, Bharadwaj & Alam 2019;Gillissen et al 2020;Ramesh & Alam 2020). This last topic has recently benefited from a set of comprehensive experimental studies describing the effects of low particle concentrations on mixing in TCF (Dherbécourt et al 2016;Rida et al 2019), TCF dynamics of dense particle suspensions with sedimentation and resuspension (Saint-Michel et al 2017 and the effects of intermediate particle concentrations on high-order flow transitions Ramesh et al 2019;Baroudi, Majji & Morris 2020;Dash, Anantharaman & Poelma 2020;Ramesh & Alam 2020). As part of the latter, it has been shown that the presence of particles globally tends to destabilise the flow Ramesh et al 2019;Dash et al 2020), as predicted by modelling approaches (Gillissen & Wilson 2019).…”

Section: Introductionmentioning

confidence: 99%

Modulation of elasto-inertial transitions in Taylor–Couette flow by small particles

et al. 2021

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Particle suspensions in non-Newtonian liquid matrices are frequently encountered in nature and industrial applications. We here study the Taylor–Couette flow (TCF) of semidilute spherical particle suspensions (volume fraction $\leq 0.1$ ) in viscoelastic, constant-viscosity liquids (Boger fluids). We describe the influence of particle load on various flow transitions encountered in TCF of such fluids, and on the nature of these transitions. Particle addition is found to delay the onset of first- and second-order transitions, thus stabilising laminar flows. It also renders them hysteretic, suggesting an effect on the nature of bifurcations. The transition to elasto-inertial turbulence (EIT) is shown to be delayed by the presence of particles, and the features of EIT altered, with preserved spatio-temporal large scales. These results imply that particle loading and viscoelasticity, which are known to destabilise the flow when considered separately, can on the other hand compete with one another and ultimately stabilise the flow when considered together.

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Effect of inertial migration of particles on flow transitions of a suspension Taylor-Couette flow

Cited by 13 publications

References 30 publications

Flow instability and transitions in Taylor–Couette flow of a semidilute non-colloidal suspension

Flow instability and transitions in Taylor–Couette flow of a semidilute non-colloidal suspension

Torque scaling at primary and secondary bifurcations in a Taylor–Couette flow of suspensions

Modulation of elasto-inertial transitions in Taylor–Couette flow by small particles

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