Reynolds number is significant in____________________?

• A. supersonics, as with projectile and jet propulsion
• B. full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc
• C. simultaneous motion through two fluids where there is a surface of dis-continuity, gravity forces, and wave making effect, as with ship’s hulls
• D. all of the above
• E. none of the above