Results 31 to 40 of about 177,184 (308)

The Reynolds Stresses Equation Modelling in the Prediction of Flow Past a Rotating Cylinder at High Reynolds Number

open access: yesWorld Congress on Mechanical, Chemical, and Material Engineering, 2017
This research presents the predictions of flow past a rotating cylinder at a sub-critical Reynolds number of 130,000. The main objective is to identify turbulence effective modelling strategies for unsteady RANS computations. For this reason both effective viscosity and stress-transport models have been used with different strategies for the modelling ...
Iacovides, Hector   +2 more
openaire   +2 more sources

Analysis of HD Journal Bearings Considering Elastic Deformation and Non-Newtonian Rabinowitsch Fluid Model [PDF]

open access: yesTribology in Industry, 2016
The purpose of this paper is to study the performance of a finite length journal bearing, taking into account effects of non-Newtonian Rabinowitsch flow rheology and elastic deformations of the bearing liner.
J. Javorova   +3 more
doaj  

Subgrid Parameterizations of Ocean Mesoscale Eddies Based on Germano Decomposition

open access: yesJournal of Advances in Modeling Earth Systems, 2023
Ocean models at intermediate resolution (1/4°), which partially resolve mesoscale eddies, can be seen as Large eddy simulations of the primitive equations, in which the effect of unresolved eddies must be parameterized.
Pavel Perezhogin, Andrey Glazunov
doaj   +1 more source

Charge‐Induced Morphing Gels for Bioinspired Actuation

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a novel electroactive actuation mechanism that enables the gel material to generate substantial and reversible shape‐changing while preserving topological and isochoric (volumetric) equivalence. The resultant morphing behaviors can mimic the movements of muscle‐driven organelles in nature, including cilia‐like beating and ...
Ciqun Xu   +4 more
wiley   +1 more source

On the modified Reynolds equation for journal bearings in a case of non-Newtonian Rabinowitsch fluid model

open access: yesMATEC Web of Conferences, 2018
In this paper, a theoretical analysis of hydrodynamic plain journal bearings with finite length at taking into account the effect of non-Newtonian lubricants is presented.
Javorova Juliana, Angelova Jordanka
doaj   +1 more source

Dynamics of a 1-D model for the emergence of the plasma edge shear flow layer with momentum conserving Reynolds stress

open access: yes, 2007
A one-dimensional version of the second-order transition model based on the sheared flow amplification by Reynolds stress and turbulence supression by shearing is presented.
B. A. Carreras, Diamond P. H., I. Calvo
core   +1 more source

Triblock Polymer Engineering Enables Hydration‐Rich, High‐Performance, Fouling‐Resistant Interfaces

open access: yesAdvanced Functional Materials, EarlyView.
A molecularly engineered triblock polymer (PHZ) rapidly reorganizes into a hydration‐rich interfacial layer on diverse surfaces, strongly suppressing hydrophobic attraction and fouling. The triblock polymer provides robust energy and steric barriers to oily foulants, enabling high‐performance antifouling at ultralow dosage.
Chenyu Qiao   +6 more
wiley   +1 more source

Validation of Turbulence Closures for the RANS Modelling of Under-expanded Fluid Releases [PDF]

open access: yes, 2015
Presented are results from the application of a shock-capturing numerical scheme to the solution of the Favre-averaged Navier-Stokes fluid-flow equations, coupled with compressibility-corrected turbulence models.
Fairweather, M   +3 more
core   +1 more source

Characterization of an Injectable Poly(vinyl alcohol)‐gelatin Hydrogel for Growth Factor Delivery in an Orthopedic Application

open access: yesAdvanced Healthcare Materials, EarlyView.
This work introduces photo‐crosslinkable tyraminated poly(vinyl alcohol)‐gelatin (PVA‐GT) hydrogels as tunable injectable platforms for tissue engineering and growth factor delivery applications. This schematic illustrates the two developed hydrogel formulations and the experimental workflow used to evaluate their physico‐chemical properties in vitro ...
Alessia Longoni   +15 more
wiley   +1 more source

Self‐Assembled Inorganic Nanomembrane Tubes: Rolled‐Up Piezoelectrics for Microacoustic Wave‐Based Actuators and Sensors

open access: yesAdvanced Materials, EarlyView.
This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau   +9 more
wiley   +1 more source

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