PulseExploreJournal ClubResearchersJournals
Instagram
HomeJournal ClubExplore
Synapse
⌘+K
Synapse
March 29, 2026FlowOpen Access

Vortices produced by swirl-mixing grids in nuclear fuel assembly: a wind-tunnel experiment

View Full Paper
Ask AI
Bookmark
Share

Authors

MDMatěj DolejšDDDaniel DudaVJVojtěch Janský

Discussion

Loading...

Member takes

Overview

Wind tunnel experiments explore vortex formation in nuclear fuel assembly, indicating effects of grid design.

Key Points

  • This research aims to investigate the longitudinal vortices created by swirl-mixing grids in a nuclear fuel assembly model.
  • Conducted wind tunnel experiments using an upscaled nuclear fuel assembly model.
  • Employed particle image velocimetry to map flow dynamics downstream of the swirl-mixing grid.
  • Compared flow patterns among basic grids, swirl grids, and configurations without fuel rods.
  • Utilized a custom-made algorithm to identify individual vortices.
  • Meandering of vortices is enhanced by both fuel rods and upstream swirl grids.
  • No growth in vortex core radii observed in the constrained configuration.
  • Weak anticorrelation found between vortex velocity and meandering amplitude.
  • Neighboring vortices exhibited weak correlations in circumferential velocities but no significant positional correlations.

Cite This Study

Dolejš et al. (2026) studied this question.

synapsesocial.com/papers/69c8c1f4de0f0f753b39c243https://doi.org/10.1017/flo.2026.10044
View Full Paper
Ask AI
Bookmark
Share