| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 296105 | Nuclear Engineering and Design | 2015 | 7 Pages |
•Ultrasound transit time technique (UTTT) is applied to the zig-zag raise of gas bubble.•Comparison of bubble diameter and tilt, measured by UTTT, with high-speed imaging.•Uncertainty in the determination of the bubble diameter by UTTT is less than 7%.•UTTT is able to measure dynamic changes in bubble size in opaque liquids and vessels.•UTTT can be applied to liquid metal loops.
This study presents ultrasound transit time technique (UTTT) measurements of the diameter variations of single argon bubbles rising in a zig-zag trajectory in water. Simultaneous size measurements with a high-speed camera show that UTTT resolves both the apparent diameter and the tilt of the bubble axis with an accuracy of better than 7%. This qualifies UTTT for the measurement of bubble sizes in opaque liquids, such as liquid metals, or vessels.
