Coupled CFD-DEM simulation of oscillatory particle-laden fluid flow through a porous metal foam heat exchanger: Mitigation of particulate fouling

Kuruneru, Sahan Trushad Wickramasooriya; Sauret, Emilie; Saha, Suvash C.; Gu, Yuantong

doi:10.1016/j.ces.2018.01.006

Cited by 17 publications

(8 citation statements)

References 66 publications

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“…In particular, even the stickiness, the repulsive forces, the attractive forces between particles, the wettability and the roughness of the surfaces in which deposition could occur are important parameters to check. However, a recent study has shown that oscillating pulsatile fluids play an important role in reducing or even nullifying particulate fouling in metal foam heat exchangers depending on the frequency of the pulsatile fluids (Kuruneru et al, 2018). The objective of this research is to develop a numerical model to examine the transient evolution of a multiphase solidfluid flows and to study the interaction between the solid particles and the fluid inside a simplified geometry of a metal foam heat exchanger.…”

Section: Nomenclaturementioning

confidence: 99%

“…This could be potentially achieved by using oscillatory pulsatile fluids which has shown to not only reduce time-averaged pressure drop but also reduce buildup of unwanted material (aggregation and deposition) in porous metal foam heat exchangers. This antifouling technique is covered extensively in a study by Kuruneru et al (2018) and future studies entails studying the effects of fully resolved solid-fluid and solid-wall heat transfer coupled with oscillatory fluids.…”

Section: Solid-fluid Heat Transfer Characteristicsmentioning

confidence: 99%

“…Unfortunately, there are very limited studies that critically examine the complete fundamental aspects of multiphase solid-fluid flows and solid particulate fouling in metal foam heat exchangers. There are limited studies on multiphase solid-fluid flows through metal foam heat exchangers; however, these studies assume isothermal flows in which no heat transfer effects where considered (Kuruneru et al, 2016;Kuruneru et al, 2017a;Kuruneru et al, 2017b;Kuruneru et al, 2017c;Kuruneru et al, 2018). Secondly, the effects of solid particulate fouling coupled with heat transfer effects in porous media was not considered.…”

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confidence: 99%

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A macroscopic particle modelling approach for non-isothermal solid-gas and solid-liquid flows through porous media

Robone

Kuruneru

Islam

et al. 2019

Applied Thermal Engineering

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The complexity of multiphase flows in many engineering systems such as heat exchangers signify the need to develop new and advanced numerical models to analyse the interactions the working fluid and unwanted solid foulants. Fouling is present in a myriad of industrial and domestic processes and it has a negative impact on the economy and the environment. The mechanisms that govern non-isothermal solid-fluid flow through porous metal foam heat exchangers are complex and poorly understood. In this research, a coupled finite volume method (FVM) and macroscopic particle model (MPM) is developed and implemented in ANSYS Fluent to examine the transient evolution of a non-isothermal multiphase solid-fluid flow and the interaction between coupled interactions of solid particles, fluid, and porous media. The maximum particle temperature is dependent on the fluid and solid particle thermo-physical properties in addition to the temperature of the cylindrical ligaments of the porous media. The present results show that the smallest solid particles reach the highest temperatures in the porous heat exchanger and at low inlet velocities, the highest particle temperatures are realized. The results pertaining to maximum particle temperatures are prevalent in many industrial processes and acquiring knowledge of the maximum particle temperature serves as a steppingstone for comprehending complex multiphase solid-fluid flows such as the cohesiveness between the particles and the particle adhesion with the walls. The results of these studies could potentially be used in the future to optimize metal foam heat exchanger designs.

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Section: Nomenclaturementioning

confidence: 99%

Section: Solid-fluid Heat Transfer Characteristicsmentioning

confidence: 99%

mentioning

confidence: 99%

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A macroscopic particle modelling approach for non-isothermal solid-gas and solid-liquid flows through porous media

Robone

Kuruneru

Islam

et al. 2019

Applied Thermal Engineering

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“…The material properties used for the comparison are tabulated in Table 3 in the Appendix. Present study Kuruneru et al [38] Li et al [66] Figure 8: The position of a 6 mm Teflon ball respect to a soda glass surface.…”

Section: Contact Mechanics Validationmentioning

confidence: 81%

“…Kuruneru et al [37] has developed and validated a CFD-DEM model to study fouling of a metal foam heat exhchanger. Kuruneru et al [38] studied the fouling bulk regime of 25 µm particles in an oscillating unsteady laminar flow and made a comparison study between sawdust and sandstone type particles [39] in the metal foam heat exchanger. Kuruneru et al [40] also studied fouling with 50 µm and with very low inlet velocity of around 0.1m/s, which is very rarely encountered in HVAC application.…”

Section: Introductionmentioning

confidence: 99%

Deposition of dry particles on a fin-and-tube heat exchanger by a coupled soft-sphere DEM and CFD

Välikangas

Hærvig

Kuuluvainen

et al. 2020

International Journal of Heat and Mass Transfer

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Full-field analysis of gas flow within open-cell foams: comparison of micro-computed tomography-based CFD simulations with experimental magnetic resonance flow mapping data

et al. 2020

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Pattern of fluid flow through open-cell foams is important because of its influence on the performance of processes such as filtration, adsorption and heterogeneous catalysis that make use of such foams. So far, however, the experimental verification of velocity profiles obtained by computational fluid dynamics (CFD) simulation was insufficient. Here, the effect of morphology of ceramic foams on local gas flow patterns is observed via the noninvasive magnetic resonance velocimetry (MRV) technique. In order to cross-validate the simulations with the experimental flow mapping results, micro-computed tomography (µCT) data of the entire foams were used for generating the computational network required for 3D CFD simulations of velocity fields within the pores. The results of CFD simulations and MRV measurements of gas flow showed a remarkable agreement with deviations mainly below 10 percent if the whole foam structure was utilized in CFD simulations. The qualitative and quantitative agreement between CFD and MRV results underlines the reliability of CFD simulations that are based on µCT data and underpins the capability of NMR-based measurements for in situ velocity measurements. Graphic abstract

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Coupled CFD-DEM simulation of oscillatory particle-laden fluid flow through a porous metal foam heat exchanger: Mitigation of particulate fouling

Cited by 17 publications

References 66 publications

A macroscopic particle modelling approach for non-isothermal solid-gas and solid-liquid flows through porous media

A macroscopic particle modelling approach for non-isothermal solid-gas and solid-liquid flows through porous media

Deposition of dry particles on a fin-and-tube heat exchanger by a coupled soft-sphere DEM and CFD

Full-field analysis of gas flow within open-cell foams: comparison of micro-computed tomography-based CFD simulations with experimental magnetic resonance flow mapping data

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