Academic Journal
View in EDS

Numerical Analysis and Experimental Investigation of the Effect of Inlet Angle on Hydrocyclone Classification Performance.

Bibliographic Details
Title: Numerical Analysis and Experimental Investigation of the Effect of Inlet Angle on Hydrocyclone Classification Performance.
Authors: Zou, C.1, Huang, G.1, Liu, G.1, Li, J.1, Fu, Y.1, Lv, J.1, Li, F.1,2 lifeng1@lyu.edu.cn
Source: Journal of Applied Fluid Mechanics. Aug2026, Vol. 19 Issue 8, p2100-2113. 14p.
Subject Terms: Separation (Technology), Hydrodynamics, Machine separators, Particle motion, Computer simulation, Model validation
Abstract: Hydrocyclones, which are efficient solid-liquid separation devices widely used in coal separation, petroleum purification, and other industries, have classification performance directly governing industrial separation efficiency. As a multiphase flow transport channel, the inlet critically influences internal flow field characteristics and particle motion, yet the mechanism by which the inlet angle regulates classification performance remains unclear. To address this gap, this study combined numerical simulation and experimental verification to systematically investigate the effects of different inlet angles. Numerical simulations acquired pressure, velocity, turbulence fields, and air core characteristics, while a closed-loop test rig with quartz sand validated numerical reliability. Quartz sand with density 2650 kg/m³, particle size distribution 0~60μm, and slurry concentration 5%-10% were used in experiments. Key findings show positive inlet angles effectively enhanced tangential velocity, reduced turbulence intensity and proportions of short-circuit/circulating flow, optimized air core stability, and minimized its classification space occupation. In terms of classification performance, positive angles decreased cut size by ≥ 6.36µm, increased the sharpness index by up to 0.36, and significantly improved accuracy. Compared with the -15° inlet structure, the 15° inlet reduced underflow fine particle content by 13.19 percentage points, lowered pressure drop by 4.7KPa, and boosted quality/quantity efficiency by 8.5 and 6.52 percentage points, respectively. This work clarifies the inlet angle's regulatory mechanism, providing theoretical and data support for high-efficiency hydrocyclone design. Positive inlet angles reduce underflow fine particle entrainment and operational energy consumption, improving the economy and stability of industrial separation. [ABSTRACT FROM AUTHOR]
Database: Supplemental Index
FullText Text:
  Availability: 0
CustomLinks:
  – Url: https://resolver.ebsco.com/c/fiv2js/result?sid=EBSCO:edo&genre=article&issn=17353572&ISBN=&volume=19&issue=8&date=20260801&spage=2100&pages=2100-2113&title=Journal of Applied Fluid Mechanics&atitle=Numerical%20Analysis%20and%20Experimental%20Investigation%20of%20the%20Effect%20of%20Inlet%20Angle%20on%20Hydrocyclone%20Classification%20Performance.&aulast=Zou%2C%20C.&id=DOI:10.47176/jafm.19.8.4222
    Name: Full Text Finder (for New FTF UI) (ns324271)
    Category: fullText
    Text: Full Text Finder
    MouseOverText: Full Text Finder
Header DbId: edo
DbLabel: Supplemental Index
An: 195528763
RelevancyScore: 1082
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 1082.42456054688
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Numerical Analysis and Experimental Investigation of the Effect of Inlet Angle on Hydrocyclone Classification Performance.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Zou%2C+C%2E%22">Zou, C.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Huang%2C+G%2E%22">Huang, G.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Liu%2C+G%2E%22">Liu, G.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Li%2C+J%2E%22">Li, J.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Fu%2C+Y%2E%22">Fu, Y.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Lv%2C+J%2E%22">Lv, J.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Li%2C+F%2E%22">Li, F.</searchLink><relatesTo>1,2</relatesTo><i> lifeng1@lyu.edu.cn</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Journal+of+Applied+Fluid+Mechanics%22">Journal of Applied Fluid Mechanics</searchLink>. Aug2026, Vol. 19 Issue 8, p2100-2113. 14p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Separation+%28Technology%29%22">Separation (Technology)</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrodynamics%22">Hydrodynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Machine+separators%22">Machine separators</searchLink><br /><searchLink fieldCode="DE" term="%22Particle+motion%22">Particle motion</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink><br /><searchLink fieldCode="DE" term="%22Model+validation%22">Model validation</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Hydrocyclones, which are efficient solid-liquid separation devices widely used in coal separation, petroleum purification, and other industries, have classification performance directly governing industrial separation efficiency. As a multiphase flow transport channel, the inlet critically influences internal flow field characteristics and particle motion, yet the mechanism by which the inlet angle regulates classification performance remains unclear. To address this gap, this study combined numerical simulation and experimental verification to systematically investigate the effects of different inlet angles. Numerical simulations acquired pressure, velocity, turbulence fields, and air core characteristics, while a closed-loop test rig with quartz sand validated numerical reliability. Quartz sand with density 2650 kg/m³, particle size distribution 0~60μm, and slurry concentration 5%-10% were used in experiments. Key findings show positive inlet angles effectively enhanced tangential velocity, reduced turbulence intensity and proportions of short-circuit/circulating flow, optimized air core stability, and minimized its classification space occupation. In terms of classification performance, positive angles decreased cut size by ≥ 6.36µm, increased the sharpness index by up to 0.36, and significantly improved accuracy. Compared with the -15° inlet structure, the 15° inlet reduced underflow fine particle content by 13.19 percentage points, lowered pressure drop by 4.7KPa, and boosted quality/quantity efficiency by 8.5 and 6.52 percentage points, respectively. This work clarifies the inlet angle's regulatory mechanism, providing theoretical and data support for high-efficiency hydrocyclone design. Positive inlet angles reduce underflow fine particle entrainment and operational energy consumption, improving the economy and stability of industrial separation. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=edo&AN=195528763
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.47176/jafm.19.8.4222
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 14
        StartPage: 2100
    Subjects:
      – SubjectFull: Separation (Technology)
        Type: general
      – SubjectFull: Hydrodynamics
        Type: general
      – SubjectFull: Machine separators
        Type: general
      – SubjectFull: Particle motion
        Type: general
      – SubjectFull: Computer simulation
        Type: general
      – SubjectFull: Model validation
        Type: general
    Titles:
      – TitleFull: Numerical Analysis and Experimental Investigation of the Effect of Inlet Angle on Hydrocyclone Classification Performance.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Zou, C.
      – PersonEntity:
          Name:
            NameFull: Huang, G.
      – PersonEntity:
          Name:
            NameFull: Liu, G.
      – PersonEntity:
          Name:
            NameFull: Li, J.
      – PersonEntity:
          Name:
            NameFull: Fu, Y.
      – PersonEntity:
          Name:
            NameFull: Lv, J.
      – PersonEntity:
          Name:
            NameFull: Li, F.
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 08
              Text: Aug2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 17353572
          Numbering:
            – Type: volume
              Value: 19
            – Type: issue
              Value: 8
          Titles:
            – TitleFull: Journal of Applied Fluid Mechanics
              Type: main
ResultId 1