Velocity field for Taylor–Couette flow with an axial flow
作者： Steven T. Wereley , Richard M. Lueptow
DOI: 10.1063/1.870228
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摘要: The flow in the gap between an inner rotating cylinder concentric with outer stationary imposed pressure-driven axial was studied experimentally using particle image velocimetry (PIV) a meridional plane of annulus. radius ratio η=0.83 and aspect Γ=47. Velocity vector fields for nonwavy toroidal helical vortices show winding around vortices. When axially averaged velocity profile is removed from field plane, looks much like it would no except that translate distortion azimuthal contours related to shifted by flow. wavy also Again, removing results appears similar path generally axial, but periodically move retrograde due waviness vortices, both wavy, twice rotational frequency indicating coupling translation rotation. Little fluid transport occurs there substantial vortex flow, supercritical cylindrical Couette
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