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Components of wall shear rate in wavy Taylor–Couette flow

Abstract : The time-resolved axial and azimuthal components of the wall shear rate were measured as function of Reynolds number by a three-segment electrodiffusion probe flush mounted in the inner wall of the outer fixed cylinder. The geometry was characterized by a radius ratio of 0.8 and an aspect ratio of 44. The axial distribution of the wall shear rate components was obtained by sweeping the vortices along the probe using a slow axial flow. The wavelength and phase celerity of azimuthal waves, axial wavelength of vortices and their drifting velocity were calculated from the limiting diffusion currents measured by three simple electrodiffusion probes.
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Magdalena Kristiawan, Tomáš Jirout, Vaclav Sobolik. Components of wall shear rate in wavy Taylor–Couette flow. Experimental Thermal and Fluid Science, Elsevier, 2011, 35 (7), pp.1304-1312. ⟨10.1016/j.expthermflusci.2011.04.018⟩. ⟨hal-02650758⟩

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