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Event-based reverse-flow intermittency analysis over a double-protuberance lifting-surface section
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DOI：10.1016/j.oceaneng.2026.128350.png)
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Abstract
En 中文
• Event-based reverse-flow area analysis extracts separation intermittency from TR-PIV.
• Reverse-flow area links event statistics to spatial velocity field evolution.
• Threshold tests support stable identification of representative event regimes.
• Mean reverse-flow topology alone misses recurrence and spectral organization.
• Paired peak and root planes show spanwise dynamic non-equivalence.
Keywords:
Leading-edge protuberance
Flow separation
Reverse-flow area
Time-resolved particle image velocimetry
Event-based analysis
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