Taylor-Couette flow with asymmetric end-walls boundary conditions

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Abstract

In the paper the authors present the results obtained during a numerical (Direct Numerical Simulation/Spectral Vanishing Viscosity method - DNS/SVV) and experimental investigations (Kalliroscope, PIV) of the Taylor-Couette flow with asymmetric boundary conditions. In the paper attention is focused on the laminar-turbulent transition process. The main purpose of the research is to investigate the inﬂuence of diﬀerent parameters (aspect ratio, curvature parameter, end-walls boundary conditions) on the ﬂow structure and on the ﬂow characteristics. The transverse current Jω is computed from the velocity ﬁeld obtained numerically. The λ2 criterion has been used for numerical visualization.

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