Results 21 to 30 of about 291,257 (303)

Randomness representation in turbulent flows with Kolmogorov complexity (In turbulence wedge developed from a single roughness element on a flat plate)

open access: yesNihon Kikai Gakkai ronbunshu, 2014
The complexity or randomness was examined with the aid of Kolmogorov complexity for the flow about a turbulence wedge developed from a single roughness element on a flat plate.
Masashi ICHIMIYA   +2 more
doaj   +1 more source

Multifractal Model of Atmospheric Turbulence Applied to Elastic Lidar Data

open access: yesAtmosphere, 2021
This paper shall present a multifractal interpretation of turbulent atmospheric entities, considering them a complex system whose dynamics are manifested on continuous yet non-differentiable multifractal curves.
Iulian Alin Roșu   +2 more
doaj   +1 more source

Characterization of Turbulent Flow Behind a Transcatheter Aortic Valve in Different Implantation Positions

open access: yesFrontiers in Cardiovascular Medicine, 2022
The development of turbulence after transcatheter aortic valve (TAV) implantation may have detrimental effects on the long-term performance and durability of the valves.
Leonardo Pietrasanta   +5 more
doaj   +1 more source

Large-Scale Flow Structure in Turbulent Poiseuille Flows at Low-Reynolds Numbers

open access: yesJournal of Fluid Science and Technology, 2012
Direct numerical simulations of a spectral method are performed to study the turbulent channel flow at the low-Reynolds numbers, where the quasi-laminar and turbulent regions simultaneously appear and form the stripe pattern, which is floated downstream ...
Koji FUKUDOME, Oaki IIDA
doaj   +1 more source

Exploring the phase space of multiple states in highly turbulent Taylor-Couette flow [PDF]

open access: yes, 2016
We investigate the existence of multiple turbulent states in highly turbulent Taylor-Couette flow in the range of $\mathrm{Ta}=10^{11}$ to $9\cdot10^{12}$, by measuring the global torques and the local velocities while probing the phase space spanned by ...
Dung, On-Yu   +5 more
core   +4 more sources

The concept of turbulent «vortex backfill» - models and methods. Power engineering: research, equipment, technology

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2019
Models and methods for studying turbulence based on the concept of turbulent "vortex backfill" are presented. The essence of this concept is that the turbulent flow is considered as laminar, flowing through a "vortex backfill ", which creates internal ...
L. E. Melamed, G. A. Filippov
doaj   +1 more source

Comparative analysis of drag reduction characteristics of two-type riblets based on numerical simulation

open access: yesXibei Gongye Daxue Xuebao, 2022
Turbulent drag reduction has always been a hot issue in fluid mechanics. Among various turbulent drag reduction methods, riblets has attracted wide attention due to its simple structure and convenient application.
DU Shuya, SANG Weimin, PANG Run
doaj   +1 more source

TEMPORO-SPECTRAL COHERENT STRUCTURE OF TURBULENCE AND PRESSURE USING FOURIER AND WAVELET TRANSFORMS

open access: yesASEAN Journal on Science and Technology for Development, 2017
Studying the spatial distribution in coherent fields such as turbulent and turbulent-induced force ones is important to model and evaluate turbulent-induced forces and response of structures on the turbulent flows. Turbulent field-based coherent function
Thai-Hoa Le, Dong-Anh Nguyen
doaj   +1 more source

Flow-turbulence interaction in magnetic reconnection

open access: yes, 2011
Roles of turbulence in the context of magnetic reconnection are investigated with special emphasis on the mutual interaction between flow (large-scale inhomogeneous structure) and turbulence. In order to evaluate the effective transport due to turbulence,
Hoshino, Masahiro, Yokoi, Nobumitsu
core   +1 more source

On the non-local turbulent transport and non-gradient thermal diffusion phenomena in HVAC systems [PDF]

open access: yesFME Transactions, 2012
The turbulence structure investigation is essential for understanding the physics of flow-thermodynamic processes in Heating, Ventilation and Air conditioning (HVAC) systems.
Burazer Jela M.   +2 more
doaj  

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