Skip to content
Research Article Open access CC BY 4.0

Numerical Simulation Study of Dredger Impeller Based on Fluid-Solid Coupling

Kai Yu

Journal of Engineering Research and Reports · pp. 111–120 · Published 4 Aug 2023

10.9734/jerr/2023/v25i7944

Abstract

Aims: The majority of current research on submerged impellers concentrates on transient hydrodynamic properties; however, the modifications to the flow field and impeller caused by fluid-solid interaction have not been sufficiently studied. Study Design: The vibration and deformation of the impeller due to the flow field's changing flow velocity will have an impact on the impeller's stability. Methodology: In this study, two-way fluid-structure coupling is used to investigate variations in impeller dynamic stress as well as changes in the flow field's properties at various inlet velocities. Results: The larger the flow velocity, the smaller the impeller's final deformation is, and the difference between the deformation at various flow velocities is approximately. 2%. The analysis and comparison of the maximum equivalent force diagrams at various velocities reveals that the maximum equivalent force in the impeller increases from 4.0615 MPa to 62.323 MPa with an increase in the flow velocity, exhibiting a jump growth. The maximum stress occurs at the beginning of the impeller's movement and reaches a maximum of 173.17 MPa. The maximum stress decreases with increasing flow field inlet velocity, falling to 168.65 MPa and 159.37 MPa at 2m/s and 3m/s, respectively. Conclusion: The results based on the two-phase flow model and k-turbulence model demonstrate that the impeller deformation increases stepwise from inside to outside, and the total deformation of the impeller decreases as the flow field's inlet velocity increases. The maximum stress of the impeller first appears at the junction of the hub and the fan blade, where the stress decreases with the increase of flow velocity, and the maximum stress appears in the middle of the impeller.

Impeller blades bi-directional fluid-solid coupling dynamic stress distribution deformation flow field analysis

References (17)

  1. 1 Numerical simulation of solid-liquid mixing characteristics in a stirred tank with fractal impellers [DOI]
  2. 2 Mass transfer and power characteristics of stirred tank with Rushton and curved blade impeller [DOI]
  3. 3 Fluid-structure interaction study of a mixed-flow pump impeller during startup [DOI]
  4. 4 Dynamic stress of impeller blade of shaft extension tubular pump device based on bidirectional fluid-structure interaction [DOI]
  5. 5 Optimization of a Centrifugal Impeller on Blade Thickness Distribution to Reduce Hydro-Induced Vibration [DOI]
  6. 6 Fluid-structure interaction characteristics of inflatable reentry aeroshell at subsonic speed [DOI]
  7. 7 Stress Characteristics Analysis of Vertical Bi-Directional Flow Channel Axial Pump Blades Based on Fluid–Structure Coupling [DOI]
  8. 8 Application of direct coupling method to design problems of hydrostatic guideways accounting for fluid-structure interactions [DOI]
  9. 9 Motion Characteristics of High-Speed Supercavitating Projectiles Including Structural Deformation [DOI]
  10. 10 Vibration characteristics of the impeller at multi-conditions in mixed-flow pump under the action of fluid-structure interaction [DOI]
  11. 11 CFD simulation of hydrodynamics characteristics in a tank stirred by a hollow self‐inducing impeller [DOI]
  12. 12 Coupling simulation of fluid structure interaction in the stirred vessel with a pitched blade turbine [DOI]
  13. 13 Numerical Simulation of Gas-Liquid Dispersion in A Stirred Tank Agitated by Punched Rigid-Flexible Impeller [DOI]
  14. 14 Computational study of free-stream turbulence effects on film cooling using two different models [DOI]
  15. 15 Numerical Simulation of the Flow Field in Circumferential Grooved Liquid Seals [DOI]
  16. 16 BLENDING CHARACTERISTICS OF HIGH-SPEED ROTARY IMPELLERS [DOI]
  17. 17 Analysis of fluid-structure interaction in a directional permeability membrane in pressure-driven flow [DOI]

Cited by 2

Analysis of seismic response parameters of double-trough aqueduct structure considering two-way fluid-structure interaction effect

Liang Huang, Ge Li, Haotian Li · Alexandria Engineering Journal · 2025

Showing 1 of 2 known citations — external sources report more than can currently be individually listed.

Related research

Article metrics

Real usage data collected on this platform.

11

Page views

0

PDF downloads

0

Outbound clicks

2

Citations

Views over time

Views by country

Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".

Traffic sources

Referring site, by host.

Views and downloads exclude known bots/crawlers. Citations combines this platform's own DOI-resolved index with each external source's own reported total — see Cited by above for individually listed citing works. Last refreshed 0 seconds ago.