Numerical study of particle turbulence interaction in liquid‐particle flows

Mohanarangam, Krishna; Tu, Jiyuan

doi:10.1002/aic.11729

Cited by 9 publications

(3 citation statements)

References 9 publications

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“…5a, b). These features appear to be in agreement with the numerical simulations of Mohanarangam andTu (2009) andMarjanovic et al (1999) and the experimental data of Founti and Klipfel (1998). Fig.…”

Section: Results Of the Numerical Prediction Velocity Distributionsupporting

confidence: 81%

“…They made use of an Eulerian-Lagrangian model under the hypothesis of one-way coupling between the phases, with the aim to predict the erosion of the system. Mohanarangam and Tu (2009) performed simulations about the flow of a mixture of glass particles and diesel oil through a backward-facing step using an Eulerian two-fluid model, and analyzed the dependence of the mean and fluctuating velocities of the solid phase upon the particle Stokes number, i.e. the ratio between the particle relaxation time and a time characteristic of the fluid motion.…”

Section: Introductionmentioning

confidence: 99%

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Numerical investigation of solid-liquid slurry flow through an upward-facing step

Messa¹,

Malavasi²

2013

Journal of Hydrology and Hydromechanics

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Abstract:The flow of a solid-water mixture through an upward-facing step in a channel is numerically investigated. The effect of expansion ratio, mean solids volume fraction and particle diameter on the velocity field, pressure distribution and solid volume fraction field is studied. Expansion ratios of 0.50 and 0.67, particle diameter of 125 µm and 440 µm and mean solid volume fraction between 0.05 and 0.20 are considered. Particle density is 2465 kg m -3 . An Eulerian twofluid model is used to simulate the flow. Due to the lack of experimental data, the model was validated by comparison to other numerical investigations and to experimental data about the horizontal pipe case. Afterwards, it is studied the effect of the above mentioned parameters upon the degree of coupling between the phases and the extension of the disturbance region in the pressure and solid volume fraction fields downstream the step. Parameters of engineering interest, such as the reattachment length and the pressure recovery downstream the enlargement, are investigated.

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Section: Results Of the Numerical Prediction Velocity Distributionsupporting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Numerical investigation of solid-liquid slurry flow through an upward-facing step

Messa¹,

Malavasi²

2013

Journal of Hydrology and Hydromechanics

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“…Most of the numerical studies were aimed at predicting the erosion of pipeline fittings by coupling CFD and erosion models. Typically the simulations concerned dilute mixtures, and were performed using Eulerian-Lagrangian models (Habib et al, 2008); two-fluid models have been applied to solid-liquid flows through pipeline fittings in few researches only (Frawley et al, 2010;Mohanarangam and Tu, 2009); even less concern dense flows (Kaushal et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Computational investigation of liquid-solid slurry flow through an expansion in a rectangular duct

Messa

Malavasi

2014

Journal of Hydrology and Hydromechanics

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Abstract:The flow of a mixture of liquid and solid particles at medium and high volume fraction through an expansion in a rectangular duct is considered. In order to improve the modelling of the phenomenon with respect to a previous investigation , use is made of a two-fluid model specifically derived for dense flows that we developed and implemented in the PHOENICS code via user-defined subroutines. Due to the lack of experimental data, the two-fluid model was validated in the horizontal pipe case, reporting good agreement with measurements from different authors for fully-suspended flows. A 3D system is simulated in order to account for the effect of side walls. A wider range of the parameters characterizing the mixture (particle size, particle density, and delivered solid volume fraction) is considered. A parametric analysis is performed to investigate the role played by the key physical mechanisms on the development of the two-phase flow for different compositions of the mixture. The main focuses are the distribution of the particles in the system and the pressure recovery.

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The Effect of Droplets Evaporation on Turbulence Modification and Heat Transfer Enhancement in a Two-Phase Mist Flow Downstream of a Pipe Sudden Expansion

Пахомов

Терехов

2016

Flow Turbulence Combust

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Numerical study of particle turbulence interaction in liquid‐particle flows

Cited by 9 publications

References 9 publications

Numerical investigation of solid-liquid slurry flow through an upward-facing step

Numerical investigation of solid-liquid slurry flow through an upward-facing step

Computational investigation of liquid-solid slurry flow through an expansion in a rectangular duct

The Effect of Droplets Evaporation on Turbulence Modification and Heat Transfer Enhancement in a Two-Phase Mist Flow Downstream of a Pipe Sudden Expansion

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