Results 21 to 30 of about 13,652 (264)
Bubbly Turbulent Drag Reduction Is a Boundary Layer Effect [PDF]
, 2007 In turbulent Taylor-Couette flow, the injection of bubbles reduces the overall drag. On the other hand, rough walls enhance the overall drag. In this work, we inject bubbles into turbulent Taylor-Couette flow with rough walls (with a Reynolds number up ...
Berg, Thomas H. van den +3 more
core +2 more sources
Scalable Exfoliation of Bulk MoS2 to Single- and Few-Layers Using Toroidal Taylor Vortices
Nanomaterials, 2018 The production of a large amount of high-quality transition metal dichalcogenides is critical for their use in industrial applications. Here, we demonstrate the scalable exfoliation of bulk molybdenum disulfide (MoS2) powders into single- or few-layer ...
Vishakha Kaushik +5 more
doaj +1 more source
Transient growth in Taylor-Couette flow [PDF]
, 2002 Transient growth due to non-normality is investigated for the Taylor-Couette problem with counter-rotating cylinders as a function of aspect ratio eta and Reynolds number Re. For all Re < 500, transient growth is enhanced by curvature, i.e.
Faisst H. +12 more
core +2 more sources
Archives of Mechanics, 2016 In the paper the authors present the results obtained during a direct numerical simulation of the transitional Taylor–Couette flow in closed cavity. The spectral vanishing viscosity method is used to stabilize computations for higher Reynolds numbers ...
E. Tuliszka-Sznitko, K. Kiełczewski
doaj +1 more source
Transient Dynamics in Counter-Rotating Stratified Taylor–Couette Flow
Mathematics, 2023 This study focuses on the investigation of stratified Taylor–Couette flow (STCF) using non-modal analysis, which has received relatively limited attention compared to other shear flows. The dynamics of perturbations under different temperature conditions
Larry E. Godwin +3 more
doaj +1 more source
"Barber pole turbulence" in large aspect ratio Taylor-Couette flow [PDF]
, 2000 Investigations of counter-rotating Taylor-Couette flow (TCF) in the narrow gap limit are conducted in a very large aspect ratio apparatus. The phase diagram is presented and compared to that obtained by Andereck et al.
Chate, H +4 more
core +6 more sources
Fluids, 2017 Since the pioneering work of Taylor, the analysis of flow regimes of incompressible, viscous fluids contained in circular Couette systems with independently rotating cylinders have charmed many researchers.
Duccio Griffini +6 more
doaj +1 more source
Journal of Thermal Science and Technology, 2016 Contributions of the advection, turbulent transport and diffusion terms to the Nusselt number and the torque coefficient in the Taylor-Couette flow were evaluated. Integrating the energy equation in the Taylor-Couette flow twice gave an equation in which
Akihiro OHSAWA +2 more
doaj +1 more source
Azimuthal velocity profiles in Rayleigh-stable Taylor-Couette flow and implied axial angular momentum transport [PDF]
, 2014 We present azimuthal velocity profiles measured in a Taylor-Couette apparatus, which has been used as a model of stellar and planetary accretion disks. The apparatus has a cylinder radius ratio of $\eta = 0.716$, an aspect-ratio of $\Gamma = 11.74$, and ...
Huisman, Sander G. +5 more
core +4 more sources
Hydrodynamic education with rheoscopic fluid [PDF]
EPJ Web of Conferences, 2019 We present a educational poster supporting the subject „Mechanics of fluids I“, which the students evaluate to be difficult mainly due to abstractness. Our goal is to show in vivo the behavior, especially the non-linearity, of various flows transiting into
Duda Daniel +4 more
doaj +1 more source