Journal of Fluid Mechanics

Experiments on the flow past spheres at very high Reynolds numbers

Elmar  Achenbach a1
a1 Kernforschungsanlage Jülich GmbH, Jülich, Germany

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achenbach e   [Google Scholar] 


The present work is concerned with the flow past spheres in the Reynolds number range 5 × 104 [less-than-or-eq, slant] Re [less-than-or-eq, slant] 6 × 106. Results are reported for the case of a smooth surface. The total drag, the local static pressure and the local skin friction distribution were measured at a turbulence level of about 0·45%. The present results are compared with other available data as far as possible. Information is obtained from the local flow parameters on the positions of boundary-layer transition from laminar to turbulent flow and of boundary-layer separation. Finally the dependence of friction forces on Reynolds number is pointed out.

(Published Online March 29 2006)
(Received October 16 1971)
(Revised March 5 1972)