In this series from IHS ESDU, challenge questions will be posted for the community. Some questions may require calculations and others are general knowledge questions.
Here's this week's question:
The use of oil flow visualisation as a means of identifying flow features can be a valuable tool to aid the analysis of the aerodynamic characteristics of a configuration. In this process, acenaphthene is used to:
a)
show boundary layer transition
in low-speed tests by evaporation
b)
show boundary layer transition
in high-speed tests by sublimation
c)
show flow direction near the
model surface by streaking
Check back soon for the solution to this question! Visit the IHS ESDU website for more information about the validated design methods, or to request a trial subscription.
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