In January 1992 the Space Shuttle Discovery carried the first International Microgravity Laboratory into Earth orbit for eight days. One of the many experiments carried out during the orbit was a combined study of triglycine sulfate crystal growth from solution and fluid–particle-dynamics studies in microgravity. Optical diagnostics included holocameras to provide concentration measurements and three-dimensional particle tracking. More than 1000 holograms that were recorded in space have been analyzed since the flight, providing a wide range of interesting conclusions about microgravity, crystal growth, and particle dynamics. This paper focuses on the results of holographic particle-image velocimetry experiments and provides an excellent example, along with new techniques, for exploiting holography for particle and flow diagnostics.
© 1996 Optical Society of America
James D. Trolinger, Ravindra B. Lal, David Mcintosh, and William K. Witherow, "Holographic particle-image velocimetry in the first International Microgravity Laboratory aboard the Space Shuttle Discovery," Appl. Opt. 35, 681-689 (1996)