Immersed Boundary Method applied to single phase flow past crossing cylinders

Segers, Qie Quint; Kuipers, J.A.M.; Deen, NG Niels

doi:10.1016/j.ces.2013.01.001

Cited by 7 publications

(4 citation statements)

References 11 publications

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“…A drag correlation for the fluid flow past crossing cylinders proposed by Segers et al (2013) based on DNS is used here to calculate the drag coefficient:…”

Section: Wire-mesh Interactionsmentioning

confidence: 99%

Numerical modeling of carbon dioxide chemisorption in sodium hydroxide solution in a micro-structured bubble column

Jain

Kuipers

Deen

2015

Chemical Engineering Science

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“…A drag correlation for the fluid flow past crossing cylinders proposed by Segers et al (2013) based on DNS is used here to calculate the drag coefficient:…”

Section: Wire-mesh Interactionsmentioning

confidence: 99%

Numerical modeling of carbon dioxide chemisorption in sodium hydroxide solution in a micro-structured bubble column

Jain

Kuipers

Deen

2015

Chemical Engineering Science

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“…While the forcing term ( f w→l ) is calculated by filtering the summation of the forces exerted by the individual wires f normalw → normall = prefix− 1 normalΔ V ∑ ∀ w ∈ i ( 1 2 C normalD ρ normall A normalw u ) boldu where A w is the projected area of the wire in the direction of liquid flow. The drag coefficient takes the following form C D = ( 1.2288 italicRe false( 1 + 4.05675 R e 0.48 false) + 0.85 ) α w − 1.9 which was obtained by Segers et al using direct numerical simulation data of flow around crossing cylinders.…”

Section: Numerical Frameworkmentioning

confidence: 96%

“…While the forcing term ( f w→l ) is calculated by filtering the summation of the forces exerted by the individual wires where A w is the projected area of the wire in the direction of liquid flow. The drag coefficient takes the following form which was obtained by Segers et al 32 using direct numerical simulation data of flow around crossing cylinders.…”

Section: Numerical Frameworkmentioning

confidence: 99%

Euler–Lagrange Simulations of Microstructured Bubble Columns Using a Novel Cutting Model

Subburaj,

Tang,

Deen

2023

Ind. Eng. Chem. Res.

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In the concept of a microstructured bubble column reactor, meshes coated with catalyst can cut the bubbles, which in turn results in high interfacial area and enhanced interface hydrodynamics. In previous work, we developed a closure model for the fate of bubbles interacting with a wire mesh based on the outcomes of energy balance analysis. In this paper, the model is validated using Euler–Lagrange simulations against two experimental cases of microstructured bubble columns. Before validation of the model, the definition of the deceleration thickness, as used in the calculation of the virtual mass term, is refined to introduce the effects of liquid viscosity and wire thickness. Proceeding with the validation, the inclusion of our cutting closure model results in an excellent match of the bubble size reduction by the wire mesh with the experimental data. Consequently, the simulations produce a more accurate prediction of the reactor performance for the gaseous reaction in view of the pH and gas holdup profiles. The effect of liquid viscosity on the bubble size reduction by the wire mesh is replicated accurately as well. Noticeably, the significance of bubble coalescence and breakup in bubble dynamics overperforms the role of bubble cutting at high superficial gas velocities; thus, further improvement is needed there. Finally, based on the validated cutting model, we share some perspectives on the design of wire meshes to increase the bubble interfacial area.

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“…The hydrodynamics of the flow past cylinders has been reviewed by Gerrard (1978), Zdravkovich (1997) and Zdravkovich (2003). The hydrodynamics on crossing cylinders has been studied by Segers et al (2013)…”

Section: Introductionmentioning

confidence: 99%