Results 51 to 60 of about 245,469 (326)

Evolution of edge turbulence and shear flow approaching the density limit in L-mode plasmas on EAST

Nuclear Fusion
The evolution of edge turbulence and shear flow approaching the density limit in L-mode plasmas on EAST is investigated. The relative fluctuation, cross-correlation power spectral density (CPSD), wave-number spectra, skewness and kurtosis, along with the
P. Wang, G.H. Hu, L. Chen, R. Chen, L. Wang, G.S. Xu, J. Cheng, X.S. Jiang, X.D. Ye, L.L. Shan, Q.Q. Yang, X. Lin, G.F. Ding, D.G. Wu, Y. Lan, N. Yan, J. Peng   +16 more
doaj   +1 more source

Resolution requirements for numerical simulations of transition [PDF]

, 1989
The resolution requirements for direct numerical simulations of transition to turbulence are investigated. A reliable resolution criterion is determined from the results of several detailed simulations of channel and boundary-layer ...
AA Wray, DR Williams, FR Hama, J Curry, J Kim, LS Kovasznay, MR Malik, N Gilbert, PS Lowery, PS Marcus, RW Metcalfe, S Biringen, S Biringen, SA Orszag, SA Orszag, TA Zang, TA Zang, TA Zang   +17 more
core   +2 more sources

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Transition to Equilibrium and Coherent Structure in Ideal MHD Turbulence

Fluids, 2023
Transition of ideal, homogeneous, incompressible, magnetohydrodynamic (MHD) turbulence to near-equilibrium from non-equilibrium initial conditions is examined through new long-time numerical simulations on a 1283 periodic grid.
John V. Shebalin
doaj   +1 more source

Localised edge states nucleate turbulence in extended plane Couette cells [PDF]

, 2009
We study the turbulence transition of plane Couette flow in large domains where localised perturbations are observed to generate growing turbulent spots.
Becker, Boberg, BRUNO ECKHARDT, Canuto, DANIEL MARINC, Eckhardt, Koschmieder, Landau, Marinc, Schmid, TOBIAS M. SCHNEIDER   +10 more
core   +2 more sources

From Clinic to Computation: Multiscale Bioengineering Strategies for Durable Biological Aortic Valve Replacements

Advanced Functional Materials, EarlyView.
Bioprosthetic aortic valves have revolutionized the treatment of aortic stenosis, but their durability is limited by structural valve deterioration (SVD). This review focuses on the pericardial tissue at the heart of these valves, examining how its mechanical properties and calcification drive fatigue and failure.
Gabriele Greco, Pierfrancesco Gaziano, Serena Anglese, Simone Morganti, Carlo de Vincentiis, Ferdinando Auricchio, Michele Marino, Michele Conti   +7 more
wiley   +1 more source

Smooth transitional RANS model and applications with crossflow effects

Advances in Aerodynamics
Transitional Reynolds-averaged Navier–Stokes (RANS) models have become relevant in the computational fluid dynamics (CFD) community as a practical approach to predict the transition to turbulence over the surface of aerospace configurations. These models
Aline Roberta Santos Righi, Gustavo L. O. Halila, João Luiz F. Azevedo   +2 more
doaj   +1 more source

High‐Throughput Exfoliation of Optoelectronic‐Grade MoS2 via Turbulent‐Flow Wet Jet Milling

Advanced Functional Materials, EarlyView.
A scalable wet jet milling exfoliation method is demonstrated for producing optoelectronic‐grade MoS2 nanosheets using environmentally friendly ethyl cellulose in ethanol dispersion media. Guided by fluid dynamics modeling, this approach is optimized to achieve record‐high exfoliation throughput and concentration.
Maryam Khalaj, Shreyash S. Hadke, Lindsay E. Chaney, Janan Hui, Thomas Birge, Linda Li, Vinod K. Sangwan, Mark C. Hersam   +7 more
wiley   +1 more source

Phase diagram of turbulence in superfluid 3He-B

, 2004
In superfluid 3He-B mutual-friction damping of vortex-line motion decreases roughly exponentially with temperature. We record as a function of temperature and pressure the transition from regular vortex motion at high temperatures to turbulence at low ...
A.P. Finne, A.P. Finne, A.P. Finne, B. Hof, D.C. Samuels, E.B. Sonin, J.P. Pekola, M. Krusius, N.B. Kopnin, R. Blaauwgeers, R. H�nninen, R.M. Ostermeier, S. Boldarev, S.N. Fisher, T.D.C. Bevan, V.B. Eltsov, W.F. Vinen   +16 more
core   +1 more source

A Non‐Reciprocal Architected Porous Medium

Advanced Functional Materials, EarlyView.
ABSTRACT In several fluid flow, energy‐dumping, and energy‐harvesting applications, a dominant flow direction or dominant resistance direction is desirable. In this study, we propose a simple modular geometry that doubles flow resistance in one direction relative to the opposite direction, while maintaining laminar viscous flow.
Clément Vezies, Pablo Zavattieri, Nicolás Silin   +2 more
wiley   +1 more source