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- Title
Experimental verification of the early crisis of drag using a single sphere.
- Authors
Simakov, N. N.
- Abstract
The recently discovered phenomenon of drag anomaly (early crisis) observed for droplets in a two-phase turbulent flow at transition Reynolds numbers (Re = 10–100) is experimentally supported in the case of a gas flow about a single hard sphere as well. Using a specially designed torsion balance, the drag force of a foam plastic sphere 3 mm in diameter placed in a blower-produced turbulent jet is measured. It is found that the turbulence of the flow about the sphere must be high for the drag anomaly to arise.
- Subjects
DRAG (Aerodynamics); REYNOLDS number; TURBULENCE; AERODYNAMICS; TORSION
- Publication
Technical Physics, 2010, Vol 55, Issue 7, p913
- ISSN
1063-7842
- Publication type
Article
- DOI
10.1134/S1063784210070017