Results 81 to 90 of about 995,745 (408)

Intrinsic rotation in tokamaks: theory [PDF]

open access: yes, 2015
Self-consistent equations for intrinsic rotation in tokamaks with small poloidal magnetic field $B_p$ compared to the total magnetic field $B$ are derived.
Barnes, Michael, Parra, Felix I.
core   +1 more source

MHD Turbulence, Turbulent Dynamo and Applications [PDF]

open access: yes, 2014
MHD Turbulence is common in many space physics and astrophysics environments. We first discuss the properties of incompressible MHD turbulence. A well-conductive fluid amplifies initial magnetic fields in a process called small-scale dynamo. Below equipartition scale for kinetic and magnetic energies the spectrum is steep (Kolmogorov -5/3) and is ...
A. Lazarian, Andrey Beresnyak
openaire   +3 more sources

Combining Metal Additive Manufacturing and Casting Technology: High Performance Cooling Channels for Electric Powertrain Components

open access: yesAdvanced Engineering Materials, EarlyView.
When realized as inserts in high‐pressure die casting, aluminum cooling channels for electric powertrain components and similar applications typically require a stabilizing filler to survive the process. The present study investigates relinquishing this filler using additively manufactured inserts promising performance improvements.
Dirk Lehmhus   +9 more
wiley   +1 more source

Current state and future trends in boundary layer control on lifting surfaces

open access: yesAdvances in Mechanical Engineering, 2022
Successful flow control may bring numerous benefits, such as flow stabilization, flow reattachment, separation delay, drag reduction, lift increase, aerodynamic performance improvement, energy efficiency increase, shock delay or weakening, noise ...
Jelena Svorcan   +2 more
doaj   +1 more source

Spectral analysis of jet turbulence [PDF]

open access: yesJournal of Fluid Mechanics, 2017
Informed by large-eddy simulation (LES) data and resolvent analysis of the mean flow, we examine the structure of turbulence in jets in the subsonic, transonic and supersonic regimes.
O. Schmidt   +4 more
semanticscholar   +1 more source

Turbulence decay in the density-stratified intracluster medium

open access: yes, 2019
Turbulence evolution in a density-stratified medium differs from that of homogeneous isotropic turbulence described by the Kolmogorov picture. We evaluate the degree of this effect in the intracluster medium (ICM) with hydrodynamical simulations. We find
Shi, Xun, Zhang, Congyao
core   +1 more source

Active Thermal Field Integration for Marangoni‐Driven Salt Rejection and Water Collection

open access: yesAdvanced Functional Materials, EarlyView.
A thermal gradient fabric (TGF) evaporator with an auxiliary active thermal field can simultaneously increase evaporation rates and achieve long‐term salt rejection. The auxiliary active thermal field is well integrated with solar energy to construct moderate, extensive, and circulating Marangoni flow for salt rejection.
Can Ge   +12 more
wiley   +1 more source

Evaluation of Crop to Crop Water Demand Forecasting: Tomatoes and Bell Peppers Grown in a Commercial Greenhouse

open access: yesAgriculture, 2017
Forecasting crop water demand is a critical part of any greenhouse’s day-to-day operations. This study focuses on a region located in Essex County, Ontario Canada where water demand is dominated by commercial greenhouse operations (78% of capacity ...
Dean C. J. Rice   +3 more
doaj   +1 more source

Turbulence Generation from a stochastic wavelet model [PDF]

open access: yes, 2017
This research presents a new turbulence generation method based on stochastic wavelets and tests its various properties in both homogeneous and inhomogeneous turbulence. Turbulence field can be generated with less basis compared to previous synthetic Fourier methods.
arxiv   +1 more source

Coherent structures in wall-bounded turbulence [PDF]

open access: yesJournal of Fluid Mechanics, 2017
This article discusses the description of wall-bounded turbulence as a deterministic high-dimensional dynamical system of interacting coherent structures, defined as eddies with enough internal dynamics to behave relatively autonomously from any ...
J. Jiménez
semanticscholar   +1 more source

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