Flow loopSimulated feed
Gas–liquid flow
4 m instrumented sectionOscilloscopeS1 · Inlet · relative capacitance
3 sensors20 Hz per station→Time-series databaseOpening browser database→Unit-cell detector9 complete in window
Station readings
Gas fraction (%)
━ S1━ S2━ S3
Detected unit cells
Each row pairs one elongated bubble and its following liquid slug across all three stations. Newest first.
| Cell | S1 arrival (s) | Velocity (m/s) | Bubble (m) | Liquid slug (m) | Unit cell (m) | Frequency (Hz) | Gas in bubble (%) | Gas in slug (%) |
|---|---|---|---|---|---|---|---|---|
| UC-0308 | 15.40 | 1.18 | 0.59 | 1.71 | 2.30 | 0.51 | 69.5 | 10.7 |
| UC-0272 | 13.60 | 1.33 | 0.93 | 1.47 | 2.40 | 0.56 | 78.5 | 14.4 |
| UC-0240 | 12.00 | 1.33 | 0.53 | 1.60 | 2.13 | 0.63 | 68.9 | 17.3 |
| UC-0206 | 10.30 | 1.24 | 0.74 | 1.36 | 2.10 | 0.59 | 72.7 | 13.9 |
| UC-0167 | 8.35 | 1.11 | 0.89 | 1.27 | 2.16 | 0.51 | 74.2 | 15.9 |
| UC-0121 | 6.05 | 1.00 | 0.60 | 1.70 | 2.30 | 0.43 | 70.9 | 9.7 |
| UC-0075 | 3.75 | 1.06 | 0.96 | 1.49 | 2.44 | 0.43 | 76.1 | 14.8 |
| UC-0041 | 2.05 | 1.21 | 0.54 | 1.51 | 2.06 | 0.59 | 66.2 | 15.7 |
How the cells are measured
The detector finds rising and falling edges in calibrated gas fraction. S1–S3 spacing divided by the matched front delay gives structure velocity. Bubble and liquid-slug lengths use that velocity and the two residence times at S1. The reciprocal of the cell period gives frequency. Gas fractions are averaged separately over the bubble and slug intervals.
The demo starts with 20 seconds of simulated history. It keeps the latest minute of samples and detections in this browser. CSV export includes the selected signal window or all complete cells retained in the session window.