Results 31 to 40 of about 441,780 (278)
Artificial neural network-based subgrid-scale models for LES of compressible turbulent channel flow
Theoretical and Applied Mechanics Letters, 2023 Fully connected neural networks (FCNNs) have been developed for the closure of subgrid-scale (SGS) stress and SGS heat flux in large-eddy simulations of compressible turbulent channel flow.
Qingjia Meng, Zhou Jiang, Jianchun Wang
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Optimal fluxes and Reynolds stresses [PDF]
Journal of Fluid Mechanics, 2016 It is remarked that fluxes in conservation laws, such as the Reynolds stresses in the momentum equation of turbulent shear flows, or the spectral energy flux in anisotropic turbulence, are only defined up to an arbitrary solenoidal field. While this is not usually significant for long-time averages, it becomes important when fluxes are modelled locally
openaire +4 more sources
Nonlinear parallel momentum transport in strong turbulence
, 2015 Most existing theoretical studies of momentum transport focus on calculating the Reynolds stress based on quasilinear theory, without considering the \emph{nonlinear} momentum flux-$$.
Diamond, P. H., Wang, Lu, Wen, Tiliang
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Anisotropic Organised Eddy Simulation for the prediction of non-equilibrium turbulent flows around bodies [PDF]
, 2008 The unsteady turbulent flow around bodies at high Reynolds number is predicted by an anisotropic eddy-viscosity model in the context of the Organised Eddy Simulation (OES).
Bourguet, Rémi +3 more
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Experimental Study on Reynolds Number Evolution of Gas-Filled Coal
Geofluids, 2019 The flow state of gas in coals is very complicated. We should pay attention to whether the permeability calculated by Darcy’s law is in accordance with the actual situation.
Chao Liu, Minghui Li, Honggang Zhao
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RANS Equations with Explicit Data-Driven Reynolds Stress Closure Can Be Ill-Conditioned
, 2019 Reynolds-averaged Navier--Stokes (RANS) simulations with turbulence closure models continue to play important roles in industrial flow simulations. However, the commonly used linear eddy viscosity models are intrinsically unable to handle flows with non ...
Sun, Rui +3 more
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Shear Stress Measurements of Non-Spherical Particles in High Shear Rate Flows [PDF]
, 2008 The behavior of liquid-solid flows varies greatly depending on fluid viscosity; particle and liquid inertia; and collisions and near-collisions between particles. Shear stress measurements were made in a coaxial rheometer with a height to gap ratio (b/r0)
A. Jeffrey Giacomin +6 more
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Drag and Reynolds stress distribution within submerged vegetation canopies
E3S Web of Conferences, 2018 In the last few decades extensive studies focusing on both qualitative and quantitative descriptions of the Reynolds stress within aquatic canopies have been carried out.
Nikora Nina, Nikora Vladimir
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Arthritis Care &Research, Accepted Article.Objective The purpose was to evaluate a biomarker score consisting of MUC5B rs35705950 promoter variant, plasma matrix metalloproteinase (MMP)‐7, and serum anti‐malondialdehyde‐acetaldehyde (anti‐MAA) antibody for RA‐associated interstitial lung disease risk stratification. Methods Using a multicenter cohort of US veterans with RA, we performed a cross‐
Kelsey Coziahr +16 more
wiley +1 more source
Anisotropic eddy-viscosity concept for strongly detached unsteady flows [PDF]
, 2007 The accurate prediction of the flow physics around bodies at high Reynolds number is a challenge in aerodynamics nowadays. In the context of turbulent flow modeling, recent advances like large eddy simulation (LES) and hybrid methods [detached eddy ...
Bouhadji A. +10 more
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