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Influence of Sinusoidal Velocity-Inlet on Turbulence Characteristics and Particle Motion Under New Cross-Structure.

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Title: Influence of Sinusoidal Velocity-Inlet on Turbulence Characteristics and Particle Motion Under New Cross-Structure.
Authors: Xi, Yuan1 (AUTHOR) xiyuan@dlut.edu.cn, Dai, Yan1 (AUTHOR), Li, Bingxuan1 (AUTHOR), Liang, Hai2 (AUTHOR), Su, Shuyu1,3 (AUTHOR) 1141060436@qq.com
Source: Arabian Journal for Science & Engineering (Springer Science & Business Media B.V. ). Dec2025, Vol. 50 Issue 24, p20613-20632. 20p.
Subjects: Particle motion, Computational fluid dynamics, Kinetic energy, Chemical reactors, Turbulence, Regression analysis, Particle dynamics
Abstract: Capturing fine particles is challenging for industrial dust removal due to the smaller size. Accurate prediction and precise regulation of particle residence time are key. A new cross-structure reactor with sinusoidal velocity-inlet is proposed for achieving this purpose. The CFD-DEM method is employed to explore the influence of width-to-diameter ratio on turbulent characteristics and particles' motion behavior. Under the condition of width-to-diameter ratio L/D = 5, turbulent kinetic energy is affected dramatically by the sinusoidal regulation. The amplitude of sinusoidal parameters exerts the most significant impact on particle residence time. When amplitude is altered from 0.5 to 3, the turbulent kinetic energy encounters an augmentation of 0.67 m2/s2. Additionally, the mechanism of interaction between particles and airflow is investigated by calculating fine particle's relative molecular mass, size, velocity, trajectory, residence time, and injection position. The larger the particle size is, the longer the residence time is for the identical relative molecular mass. The greater the relative molecular mass is, the shorter the residence time is for the same particle size. Ultimately, in order to predict and control the particle residence time precisely, a regression model is established and its correlation coefficient is 0.9956. The regression model also demonstrates the factors effects (amplitude, phase, and period) and the mutual functions among them. The greatest impact of the interaction factors is amplitude/phase interactions, while the lowest influence is amplitude/period interactions. When configured with an amplitude of 2.1931 mm, phase shift of T/6, and periodicity of 0.75 s, the residence time is longest. [ABSTRACT FROM AUTHOR]
Copyright of Arabian Journal for Science & Engineering (Springer Science & Business Media B.V. ) is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Influence of Sinusoidal Velocity-Inlet on Turbulence Characteristics and Particle Motion Under New Cross-Structure.
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  Data: <searchLink fieldCode="DE" term="%22Particle+motion%22">Particle motion</searchLink><br /><searchLink fieldCode="DE" term="%22Computational+fluid+dynamics%22">Computational fluid dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Kinetic+energy%22">Kinetic energy</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+reactors%22">Chemical reactors</searchLink><br /><searchLink fieldCode="DE" term="%22Turbulence%22">Turbulence</searchLink><br /><searchLink fieldCode="DE" term="%22Regression+analysis%22">Regression analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Particle+dynamics%22">Particle dynamics</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Capturing fine particles is challenging for industrial dust removal due to the smaller size. Accurate prediction and precise regulation of particle residence time are key. A new cross-structure reactor with sinusoidal velocity-inlet is proposed for achieving this purpose. The CFD-DEM method is employed to explore the influence of width-to-diameter ratio on turbulent characteristics and particles' motion behavior. Under the condition of width-to-diameter ratio L/D = 5, turbulent kinetic energy is affected dramatically by the sinusoidal regulation. The amplitude of sinusoidal parameters exerts the most significant impact on particle residence time. When amplitude is altered from 0.5 to 3, the turbulent kinetic energy encounters an augmentation of 0.67 m2/s2. Additionally, the mechanism of interaction between particles and airflow is investigated by calculating fine particle's relative molecular mass, size, velocity, trajectory, residence time, and injection position. The larger the particle size is, the longer the residence time is for the identical relative molecular mass. The greater the relative molecular mass is, the shorter the residence time is for the same particle size. Ultimately, in order to predict and control the particle residence time precisely, a regression model is established and its correlation coefficient is 0.9956. The regression model also demonstrates the factors effects (amplitude, phase, and period) and the mutual functions among them. The greatest impact of the interaction factors is amplitude/phase interactions, while the lowest influence is amplitude/period interactions. When configured with an amplitude of 2.1931 mm, phase shift of T/6, and periodicity of 0.75 s, the residence time is longest. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Arabian Journal for Science & Engineering (Springer Science & Business Media B.V. ) is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s13369-025-10212-y
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        Text: English
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        StartPage: 20613
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      – SubjectFull: Particle motion
        Type: general
      – SubjectFull: Computational fluid dynamics
        Type: general
      – SubjectFull: Kinetic energy
        Type: general
      – SubjectFull: Chemical reactors
        Type: general
      – SubjectFull: Turbulence
        Type: general
      – SubjectFull: Regression analysis
        Type: general
      – SubjectFull: Particle dynamics
        Type: general
    Titles:
      – TitleFull: Influence of Sinusoidal Velocity-Inlet on Turbulence Characteristics and Particle Motion Under New Cross-Structure.
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            NameFull: Xi, Yuan
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              Text: Dec2025
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              Y: 2025
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