We are building a particle tracking systemfor the measurement of convective heat transfersand pollutants displacements in full scale rooms.To increase the depth of the zone of interest, thesystem is non stereoscopic and do not use laserlight. The flow is seeded with 3mm-largeneutrally buoyant helium filled soap bubbles.Illumination is provided by white continuouslight. The seeded flow (air) is recorded by 3high-speed digital video cameras located alongthree different planes.
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