The paper reports the first experimental observation of an upstream-directed jet burst in a backward-facing step flow at Re_h=2100 using live optical-flow velocimetry over 1.5 hours.
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physics.flu-dyn 2years
2025 2representative citing papers
Real-time optical flow velocimetry delivers dense per-pixel velocity fields at up to 1400 Hz for 1 Mp images, shown on synthetic benchmarks and cylinder flow experiments.
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Rare-event detection in a backward-facing-step flow using live optical-flow velocimetry: observation of an upstream jet burst
The paper reports the first experimental observation of an upstream-directed jet burst in a backward-facing step flow at Re_h=2100 using live optical-flow velocimetry over 1.5 hours.
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High Resolution and High-Speed Live Optical Flow Velocimetry
Real-time optical flow velocimetry delivers dense per-pixel velocity fields at up to 1400 Hz for 1 Mp images, shown on synthetic benchmarks and cylinder flow experiments.