File:Drag sphere nasa.svg

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Summary

DescriptionDrag sphere nasa.svg	English: Drag coefficient C_d for a sphere as a function of Reynolds number Re, as obtained from laboratory experiments. The solid line is for a sphere with a smooth surface, while the dashed line is for the case of a rough surface. The numbers along the line indicate several flow regimes and associated changes in the drag coefficient: 2: attached flow (Stokes flow) and steady separated flow, 3: separated unsteady flow, having a laminar boundary layer upstream of the separation, and producing a vortex street, 4: separated unsteady flow with a laminar boundary layer at upstream side, before flow separation, with downstream of the sphere a chaotic turbulent wake, 5: post-critical separated flow, with a turbulent boundary layer.
Date	24 August 2010
Source	http://www.grc.nasa.gov/WWW/k-12/airplane/dragsphere.html
Author	NASA
Other versions	[edit] .svg: English .svg English .svg English .svg Russian .svg .png: English .png French .png French .png French .png .jpg: English .jpg File:Dragsphere nasa.jpg File:Drag coefficient on a sphere vs. Reynolds number - main trends.svg

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	23:13, 14 May 2013		673 × 451 (18 KB)	wikimediacommons>Kraaiennest	== {{int:filedesc}} == {{Information \|Description={{en\|1=Drag coefficient ''C''<sub>d</sub> for a sphere as a function of Reynolds number ''Re'', as obtained from laboratory [[:en:experiment\|experiments]...

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