Turbulence in the Vicinity of a Rotating Cylinder in a Quiescent Fluid

An experimental and numerical investigation of the turbulence field in the vicinity of a rotating cylinder in a quiescent fluid has been carried out. Radial distributions of mean velocity and non-vanishing Reynolds stress components have been measured using hot-wire technique, and corresponding components have been calculated with a low-Reynolds number second- moment closure model. From the measurements it can be concluded the turbulence field is established in the present set up at a Reynolds number which is roughly twenty times larger than earlier measurements have shown. Comparisons between calculations and measurements yield some deviations. However, a qualitatively good agreement is obtained. In the paper, different methods for the determination of the friction velocity are also described and discussed.

Johansson, Bert,1941Chalmers tekniska högskola,Chalmers University of Technology (författare)
Löfdahl, Lennart,1948Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)lelo (författare)
Nielsen, Pål-Jahre,1965 (författare)
Chalmers tekniska högskola (creator_code:org_t)

Av författaren/redakt...: Andersson, Helge ...; Johansson, Bert, ...; Löfdahl, Lennart ...; Nielsen, Pål-Jah ...

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