Naturally aspirating isokinetic total water content probe: Preliminary test results and design modifications

A total water content probe for flight and ground based testing is under development. During operation across a range of altitudes and water content conditions the probe has to maintain isokinetic flow and vaporize the solid and liquid water content. Modeling the evaporation of ice particles within the probe is described and correlations made between sea level and altitude results. Results of sea level and altitude testing at the National Research Council Canada and NASA Glenn Icing Research Tunnel are presented covering both ice crystals and super cooled liquid. Modifications to the probe to enhance its functions are also outlined. \ua9 2010 by Her Majesty the Queen in Right of Canada.Peer reviewed: YesNRC publication: Ye