Flow of Bi-modal Slurry through Horizontal Bend

Kaushal, D. R.; Kumar, Arvind; Tomita, Yoshihiro; Kuchii, Shigeru; Tsukamoto, Hiroshi

doi:10.14356/kona.2017016

Cited by 16 publications

(2 citation statements)

References 10 publications

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“…al. [26]. The study is carried out for six silica sand/fly ash ratios (namely100/0, 90/10, 80/20, 70/30, 60/40 and 0/100).…”

Section: Introductionmentioning

confidence: 99%

Flow Characterization of Multi-Phase Particulate Slurry in Thermal Power Plants Using Computational Fluid Dynamics

Parkash¹

2020

Journal of Thermal Engineering

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The key issue associated with the thermal power plant is the disposal of ash-water slurry and the process of its transportation is accomplished using long length pipelines. The designing of such pipelines is a vital endeavor of researchers and designers globally. In this perspective, numerical simulation of 42 mm diameter three-dimensional slurry flow pipeline carrying high concentration of mono-dispersed fine ash particles has been carried out. The study is enunciated by employing Eulerian-Eulerian two-phase model with RNG k-ɛ turbulence model with the aim of visualizing and understanding the characteristics of the slurry flow behavior. The coal ash slurry concentration varies between 50% to 70% (by weight) for velocity ranges, 1-3 ms -1 . The modeling is done using Fluent commercial software with the intention of predicting the characteristics of flow for 300 µm particle size. It is observed that pressure drop upsurges non-linearly with solid concentrations and slurry velocity across pipeline. The obtained results of predetermined pressure drop are analytically compared with the experimental results. Moreover, the results are also compared with that of Eulerian-Langrange model using SST K-ω turbulence model and it is found that RNG k-ɛ turbulence model yields more accurate and desirable results.

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“…al. [26]. The study is carried out for six silica sand/fly ash ratios (namely100/0, 90/10, 80/20, 70/30, 60/40 and 0/100).…”

Section: Introductionmentioning

confidence: 99%

Flow Characterization of Multi-Phase Particulate Slurry in Thermal Power Plants Using Computational Fluid Dynamics

Parkash¹

2020

Journal of Thermal Engineering

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“…The simulated outcomes show nonlinear rise in pressure drop with increase in velocity and solid concentration. Mohanty et al [26][27] carried out the numerical simulation of counter flow heat exchanger and predicted the flow characteristics. Some of the recent work on slurry pipeline for obtaining the slurry flow characteristics is done by Parkash et al [28][29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Analytical and Comparative Investigation of Particulate Size Effect on Slurry Flow Characteristics Using Computational Fluid Dynamics

Parkash¹,

Kumar

Sikarwar³

2021

Journal of Thermal Engineering

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The key issue associated with the industries is the transportation and dumping of solids particulates in the form of slurry at the desired place using long length pipelines. In this perspective, numerical simulation of three-dimensional horizontal slurry pipeline of 0.0549 m diameter using Eulerian two-phase model with RNG kɛ turbulence closure is carried out. The glass -beads solid particulates having density (  = 2470 kg/m 3 ) and slurry concentration varies as 10% to 50% (by volume) for velocity ranges of 3-5 ms -1 . The computational modeling is done using available commercial software ANSYS Fluent for 125µm and 440 µm particulate size at different velocity and concentration range to know their effect on slurry flow characteristics. It is observed that for chosen particulate size pressure drop increases with increase in velocity at all solid concentration range. The pressure drop in slurry for 440 µm solid particulates is found higher as compared to the pressure drop of 125 µm solid particulates slurry. The percentage change in pressure drop is also reported in the paper due to particulate size effect at all velocity and solid concentration. The obtained results of predicted pressure drop are analytically compared with the available experimental results of literature and are in synchronism with that. A parametric study is carried out with the aim of visualizing and understanding the solid particulate size effect on slurry flow characteristics. Finally, the results of settling solid concentration contour, velocity contour, concentration profiles, velocity profiles and vector representation of concentration/velocity were also predicted for chosen particulates sized slurry.

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CFD Modelling and Experimental Investigation of Bimodal Slurry Flow in Horizontal Pipeline and Bends

Singh¹,

Kumar

Kaushal

2019

Lecture Notes in Mechanical Engineering

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Flow of Bi-modal Slurry through Horizontal Bend

Cited by 16 publications

References 10 publications

Flow Characterization of Multi-Phase Particulate Slurry in Thermal Power Plants Using Computational Fluid Dynamics

Flow Characterization of Multi-Phase Particulate Slurry in Thermal Power Plants Using Computational Fluid Dynamics

Analytical and Comparative Investigation of Particulate Size Effect on Slurry Flow Characteristics Using Computational Fluid Dynamics

CFD Modelling and Experimental Investigation of Bimodal Slurry Flow in Horizontal Pipeline and Bends

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