2019
DOI: 10.1007/s11012-019-01074-4
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Deformation of flexible fibers in turbulent channel flow

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Cited by 21 publications
(18 citation statements)
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“…The situation can radically change in the near-wall region of a channel flow (Voth 2015;Zhao & Andersson 2016). Channel flow studies are mainly limited to straight rods Capone et al 2017;Shaik et al 2020) or flexible fibres (Dotto & Marchioli 2019;Dotto et al 2020), and rigid non-axisymmetric fibres have been considered only in our previous study (Alipour et al 2021). In this section, we analyse the preferential orientation of the fibres in the near-wall region and we propose a physically grounded mechanism that justifies the preferential orientations observed.…”
Section: Orientationmentioning
confidence: 99%
See 1 more Smart Citation
“…The situation can radically change in the near-wall region of a channel flow (Voth 2015;Zhao & Andersson 2016). Channel flow studies are mainly limited to straight rods Capone et al 2017;Shaik et al 2020) or flexible fibres (Dotto & Marchioli 2019;Dotto et al 2020), and rigid non-axisymmetric fibres have been considered only in our previous study (Alipour et al 2021). In this section, we analyse the preferential orientation of the fibres in the near-wall region and we propose a physically grounded mechanism that justifies the preferential orientations observed.…”
Section: Orientationmentioning
confidence: 99%
“…curved fibres in which the length is much larger than the diameter. This geometry has been numerically investigated in the instance of rigid fibres in shear flow (Wang et al 2018;Thorp & Lister 2019) and flexible fibres in turbulent channel flow (Dotto & Marchioli 2019;Dotto, Soldati & Marchioli 2020). To date, only one experimental work (Alipour et al 2021) is available in literature and it describes the effect of curvature on the orientation and rotation rate of rigid and curved fibres.…”
Section: Introductionmentioning
confidence: 99%
“…2008; Marchioli, Fantoni & Soldati 2010; Zhao, Marchioli & Andersson 2014; Zhao et al. 2015; Challabotla, Zhao & Andersson 2015 a , b ; Marchioli, Zhao & Andersson 2016; Zhao & Andersson 2016; Dotto & Marchioli 2019; Dotto, Soldati & Marchioli 2020). Natural fibres can have complex and non-regular shapes, difficult to systematically characterise.…”
Section: Introductionmentioning
confidence: 99%
“…Anisotropic particles have applications in industrially relevant flows, such as in pulp and papermaking (Lundell, Söderberg & Alfredsson 2011) and environmental problems, like modelling of phytoplankton (Guasto, Rusconi & Stocker 2012;Basterretxea, Font-Munoz & Tuval 2020), sedimentation (Meiburg & Kneller 2010), aerosols (Kleinstreuer & Feng 2013), ice crystals in clouds (Kristjànsson, Edwards & Mitchell 2000;Shultz 2018;Jiang et al 2019) and micro-fibre pollution in oceans (Ross et al 2021). In recent years, significant effort has been devoted to investigating numerically the dynamics of rigid and axisymmetric ellipsoids in homogeneous and isotropic turbulence (HIT) (Shin & Koch 2005;Ni, Ouellette & Voth 2014;Byron et al 2015;Pujara, Voth & Variano 2019) and in turbulent channel flow (Mortensen et al 2008;Marchioli, Fantoni & Soldati 2010;Zhao, Marchioli & Andersson 2014;Zhao et al 2015;Challabotla, Zhao & Andersson 2015a,b;Marchioli, Zhao & Andersson 2016;Dotto & Marchioli 2019;Dotto, Soldati & Marchioli 2020). Natural fibres can have complex and non-regular shapes, difficult to systematically characterise.…”
mentioning
confidence: 99%
“…The two examples here deal with microfluidics applications, a train of particles in a viscoelastic fluids [2] and the flow of yield-stress fluids in porous media [3]. Dotto et al [4] and Rosti et al [5] are example of the possible interactions between turbulence and elastic deformable fibers and filaments, the diversity of behaviors and the role of the ratio between time scales despite the large disparity in spatial scales. Soligo et al [6] present a diffuse-interface approach to model the surfactant dynamics close to an interface and studies its effect on droplet deformation.…”
mentioning
confidence: 99%