Flow visualizationFlow visualization techniques are reviewed, with particular attention given to those applicable to liquid helium flows. Three techniques capable of obtaining qualitative and quantitative measurements of complex 3D flow fields are discussed including focusing schlieren, particle image volocimetry, and holocinematography (HCV). It is concluded that the HCV appears to be uniquely capable of obtaining full time-varying, 3D velocity field data, but is limited to the low speeds typical of liquid helium facilities.
Document ID
19920062640
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Weinstein, Leonard M. (NASA Langley Research Center Hampton, VA, United States)