Results 101 to 110 of about 71,336 (264)

Application of High‐Order Direct Flux Reconstruction and Stiffness‐Resilient Time Integration to Simulations of Idealized Atmospheric Flows

International Journal for Numerical Methods in Fluids, EarlyView.
The proposed work implements a direct flux reconstruction method for spatial discretization and a stiffness‐resilient exponential time integration method for temporal discretization on the cube‐sphere grid. A space‐time tensor formalism is employed to provide a general representation in any curvilinear coordinate system. This combination enables highly
Stéphane Gaudreault, Christopher Subich, Shoyon Panday, Martin Charron, Vincent Magnoux, Valentin Dallerit, Mayya Tokman   +6 more
wiley   +1 more source

Tidal turbine blade load experiments for oscillatory motion [PDF]

, 2011
This paper presents blade root bending moment measurements of a horizontal-axis tidal turbine for planar oscillatory motion, conducted in a stationary water towing tank.
Bickerton, S, Day, Alexander, Flay, R.G.J., Milne, I.A., Sharma, R.N.   +4 more
core  

Polymer Stress‐Tensor Calculation for a Laminar Submerged Viscoelastic Jet Flow Using Different Constitutive Models

International Journal for Numerical Methods in Fluids, EarlyView.
This study presents an efficient method to compute polymer stress‐tensor components in viscoelastic laminar jet flows using models such as Oldroyd‐B, Giesekus, PTT, and FENE. By assuming a stationary and parallel flow, the methodology significantly reduces computational cost.
Rafael de Lima Sterza, Leandro Franco de Souza, Marcio Teixeira de Mendonca, Analice Costacurta Brandi   +3 more
wiley   +1 more source

Effect of 3-Dimensional Airfoil Shape on Unsteady Fluid Forces in Pitching Motion

Journal of Fluid Science and Technology, 2010
A quasi-steady-state approach towards predicting the fluid forces acting on a hand under unsteady conditions yielded errors. The actual motion of a hand in swimming is obviously unsteady, and time-dependent fluid forces must be considered. The purpose of this study is to investigate the relationship between unsteady fluid forces and the vortex ...
Hiroaki HASEGAWA, Jun WATANABE, Kazuo MATSUUCHI   +2 more
openaire   +3 more sources

CFD Analysis of Dual‐Layer PCM Roofs for Thermal Mitigation in Residential Buildings

Heat Transfer, EarlyView.
ABSTRACT This study presents a computational fluid dynamics analysis of dual‐layer phase change material (PCM) roofs for passive cooling in residential buildings under the hot and humid climate of Bangladesh. A three‐dimensional transient model was developed in ANSYS Fluent using the enthalpy–porosity approach to simulate coupled heat conduction ...
Mohammad Junaid, Sakhawat Hossan Robel, Mahmud Or‐Rashid, Pabel Shahrear, Md Shajedul Karim, Suvash C. Saha, Goutam Saha   +6 more
wiley   +1 more source

Experimental and numerical investigation of blade resonance in a centrifugal compressor for varying gas properties

Journal of the Global Power and Propulsion Society, 2018
The blades of centrifugal compressors are exposed to unsteady forces during operation which can result in resonance response conditions and failures due to high cycle fatigue.
Degendorfer Carsten, Reza S. Abhari, Klemens Vogel, René Hunziker   +3 more
doaj   +1 more source

Effect of 3-Dimensional Airfoil Shape in Pitching Motion on Unsteady Fluid Forces

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 2008
In the present study, in order to investigate unsteady effects on propulsion during front crawl swimming, unsteady fluid forces acting on a discoid airfoil simulating a human hand and the vortical flow field were measured in the (sinusoidal) pitching motion for the wind tunnel test, because the motion of a hand in swimming is obviously unsteady.
Hiroaki HASEGAWA, Jun WATANABE, Kazuo MATSUUCHI   +2 more
openaire   +2 more sources

Computations of unsteady multistage compressor flows in a workstation environment [PDF]

High-end graphics workstations are becoming a necessary tool in the computational fluid dynamics environment. In addition to their graphic capabilities, workstations of the latest generation have powerful floating-point-operation capabilities.
Gundy-Burlet, Karen L.
core   +1 more source

Experimental Factors and Techniques for Pool Boiling Heat Transfer Enhancement: A Critical Review

Heat Transfer, EarlyView.
ABSTRACT This review presents a comprehensive assessment of active strategies for enhancing pool boiling heat transfer, with a focus on techniques that do not rely solely on the boiling surface modification. It examines a broad range of methodologies including fluid additives, external fields, mechanical interventions, and thermal‐geometric tuning that
José E. Pereira, R. R. Souza, A. S. Moita   +2 more
wiley   +1 more source

Surgical Treatment of Tremor Syndromes: A Guide to the Clinician

Movement Disorders Clinical Practice, EarlyView.
Abstract Background Tremor is a common feature of multiple neurological conditions, and while medications can be effective in mild cases, surgical interventions are often required in moderate–severe syndromes or when medication side‐effects are unacceptable.
James Peters, Joel Maamary, Yael Barnett, Andrea A. Kuhn, Benjamin Jonker, Stephen Tisch   +5 more
wiley   +1 more source