Shear-induced particle migration in three-dimensional bifurcation channel

Yadav, S.; Reddy, M. Mallikarjuna; Singh, Anugrah

doi:10.1016/j.ijmultiphaseflow.2015.06.007

Cited by 20 publications

(4 citation statements)

References 40 publications

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“…Thereby, the particles exhibit higher concentrations on the diagonal axis and the channel center. These qualitative results exhibit a similarity to those numerically obtained by Yadav et al (2015), who investigated shear-induced migration in a Y-shaped bifurcation channel (see Fig. 7b of their publication).…”

Section: Visualization and Physical Interpretationsupporting

confidence: 88%

Utilizing APTV to investigate the dynamics of polydisperse suspension flows beyond the dilute regime

et al. 2022

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We present a methodology that allows to measure the dynamics of polydisperse suspension flows by means of Astigmatism Particle Tracking Velocimetry (APTV). Measurements are successfully performed with tridisperse suspensions flows in a square duct of up to $$\varPhi =9.1\%$$ Φ = 9.1 % particle volume fraction. Using a refractive index matching technique, a small amount of the particles ($$\varPhi =0.08\%$$ Φ = 0.08 % ) is labeled with fluorescent dye to be visible to the camera during the particle tracking procedure. Calibration measurements are performed for ten different particles diameters $$d_p$$ d p ranging from $$d_p= {15}\upmu \mathrm{m}$$ d p = 15 μ m to $$d_p= {260}\,\upmu \mathrm{m}$$ d p = 260 μ m . It is shown that Euclidean calibration curves of different $$d_p$$ d p overlap outside the focal planes, which induces ambiguities in a polydisperse APTV measurement. In the present approach, this ambiguity can be overcome utilizing the light intensity of a particle image which increases sharply with $$d_p$$ d p . In this way, extended Euclidean calibration curves can be generated for each particle group which are spatially separated through the light intensity which serves as an additional calibration parameter (Brockmann et al. in Exp Fluids 61(2):67, 2020). The extended Euclidean calibration allows to simultaneously differentiate particles of different sizes and determine their 3D location. This facilitates to investigate the migration behavior of mono- and tridisperse suspension flows which we demonstrate here for square duct flows with cross-sectional areas of $$0.6\times 0.6\,\mathrm{mm}^2$$ 0.6 × 0.6 mm 2 and $$0.4\times 0.4\,\mathrm{mm}^2$$ 0.4 × 0.4 mm 2 at bulk Reynolds numbers of $$\mathrm{Re}_b \approx 20$$ Re b ≈ 20 and $$\mathrm{Re}_b \approx 40$$ Re b ≈ 40 for particle volume fractions of $$\varPhi =0.08\%$$ Φ = 0.08 % and $$\varPhi =9.1\%$$ Φ = 9.1 % . At $$\varPhi =0.08\%$$ Φ = 0.08 % and $$\mathrm{Re}_b=20$$ Re b = 20 , we observe particles to arrange themselves in a ring-like formation inside the capillary, henceforth referred to as Pseudo Segré Silberberg Annulus (PSSA), with no significant differences between mono- and polydisperse suspension particle distributions. At $$\varPhi =9.1\%$$ Φ = 9.1 % , particles in monodisperse suspensions scatter around the PSSA. This scattering decreases when $$d_p$$ d p increases or $$Re_b$$ R e b increases from 20 to 40. Striking differences are observed in polydisperse suspensions. Large particles ($${60}\,\upmu \mathrm{m}$$ 60 μ m ) scatter significantly less around the PSSA in the polydisperse case compared to a monodisperse suspension of the same overall volume fraction. In contrast, small and intermediate particles ( $${30}\,\upmu \mathrm{m}$$ 30 μ m , $${40}\,\upmu \mathrm{m}$$ 40 μ m ) are repelled by larger particles resulting in regions of high concentration close to the channel walls which can be only observed in the polydisperse case. Graphical abstract

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Section: Visualization and Physical Interpretationsupporting

confidence: 88%

Utilizing APTV to investigate the dynamics of polydisperse suspension flows beyond the dilute regime

et al. 2022

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“…For the last two decades, experimental and numerical studies on SIM were conducted in order to better understand this phenomenon and to quantify it in several geometries and flow regimes [49]. Nevertheless, the reverse problem have been never tackled in the literature, i.e.…”

Section: Introductionmentioning

confidence: 99%

On the mixing enhancement in concentrated non-colloidal neutrally buoyant suspensions of rigid particles using helical coiled and chaotic twisted pipes: A numerical investigation

Dbouk

Habchi

2019

Chemical Engineering and Processing - Process Intensification

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“…At 45º branching due to less turbulence, unvarying pressure distribution at the outlets can be achieved. Yadav et al [8] studied the numerical simulation of shear-induced particle migration through a Y-shaped bifurcation channel. The mass, momentum and particle conservation equations were solved simultaneously by Open FOAM source, which is based on the finite volume method.…”

Section: Introductionmentioning

confidence: 99%

Application of computational experiments based on the response surface methodology for studying of the recirculation zone in the Y-shaped channel

Amiri¹

2018

MMEP

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It is notable to study on the fluid flow in the branched channels, because of their application in the very industrial and engineering systems. In this work, the application of the Computational experiments for understanding of the fluid behavior was studied in the Y-shaped channel. Here, it focuses on the Recirculation zones and length. Two types of Y-shaped channel were used, which ones named as a straight Y-shaped channel and a diagonal Y-shaped channel. From initial considerations, the Reynolds number and the angle were determined as effective parameters. Computational experiments based on the Response Surface Methodology (as Central Composite Design) were used to predict the proposed model from Computational Fluid Dynamic data. The effect of these parameters was studied. Results show that with increasing the angle and decreasing the Reynolds number, Recirculation length decreases. However, in a diagonal Y-shaped channel, the angle is an important parameter and must be considered in studies.

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Shear-induced particle migration in three-dimensional bifurcation channel

Cited by 20 publications

References 40 publications

Utilizing APTV to investigate the dynamics of polydisperse suspension flows beyond the dilute regime

Utilizing APTV to investigate the dynamics of polydisperse suspension flows beyond the dilute regime

On the mixing enhancement in concentrated non-colloidal neutrally buoyant suspensions of rigid particles using helical coiled and chaotic twisted pipes: A numerical investigation

Application of computational experiments based on the response surface methodology for studying of the recirculation zone in the Y-shaped channel

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