Abstract
The present work is concerned with the flow past spheres in the Reynolds number range 5 × 104 [les ] Re [les ] 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.
Publisher
Cambridge University Press (CUP)
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics
Reference10 articles.
1. Raithby, G. D. & Eckert, E. R. G. 1968 The effect of support position and turbulence intensity on the flow near the surface of a sphere Wärme- und Stoffübertragung,1,87–94.
2. Naumann, A. 1953 Luftwiderstand der Kugel bei hohen Unterschallgeschwindigkeiten Allgemeine Wärmetechnik,4,217–221.
3. Millikan, C. B. & Klein, A. L. 1933 The effect of turbulence. An investigation of maximum lift coefficient and turbulence in wind tunnels and in flight Aircraft Eng. 5,169–174.
4. Maxworthy, T. 1969 Experiments on the flow around a sphere at high Reynolds numbers.J. Appl. Mech., Trans. A.S.M.E. E36,598–607.
5. Bacon, D. L. & Reid, E. G. 1924 The resistance of spheres in wind tunnels and in air.Nat. Adv. Com. Aero. Rep. no. 185.
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