File:Drag coefficient on a sphere vs. Reynolds number - main trends.svg

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Description	[[[:en:drag coefficient\|Drag coefficient]] C_d for a sphere as a function of Reynolds number Re, as obtained from laboratory experiments. The dark line is for a sphere with a smooth surface, while the lighter-colored 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: super-critical separated flow, with a turbulent boundary layer.] Error: {{Lang-xx}}: text has italic markup (help)
Source	Original on NASA GRC Website imported as File:Dragsphere nasa.jpg Vectorized version at File:Drag sphere nasa.svg, further edited here with source data from File:CX SPHERE.png
Date	Template:Other date (original), 2016 (modifications)
Author	Original: Anonymous NASA author (editor: Nancy Hall) Vectorization by User:Kraaiennest Edits by Olivier Cleynen
Permission (Reusing this file)	See below.
Other versions	Template:Other versions/Drag coefficient on a sphere vs. Reynolds number

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current	15:38, 22 March 2024		655 × 341 (18 KB)	Isidore (talk \| contribs)	=={{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 experiments. The dark line is for a sphere with a smooth surface, while the lighter-colored 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 (...

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