This paper presents a measurement technique to perform quantitative visualization of room air flows. The visualization is done by discrete particles, namely helium-filled soap bubbles, illuminated in a plane light sheet generated by a point light source in combination with a special lens. The recording is done stereoscopically with 3 standard cameras by streak photography. The scanned negatives are analysed digitally. The method is able to give the three-dimensional instantaneous velocity field of room air movements, also in real-scale.
Particle-streak-velocimetry for room air flows.
![](https://www.aivc.org/sites/default/files/default_images/default_image_5.png)
Year:
1994
Bibliographic info:
15th AIVC Conference "The Role of Ventilation", Buxton, UK, 27-30 September 1994