Results 41 to 50 of about 5,659 (165)

Validation of Tidal Stream Turbine Wake Predictions and Analysis of Wake Recovery Mechanism

Journal of Marine Science and Engineering, 2019
This paper documents the predictive capability of rotating blade-resolved unsteady Reynolds averaged Navier-Stokes (URANS) and Improved Delayed Detached Eddy Simulation (IDDES) computations for tidal stream turbine performance and intermediate wake ...
Sanchit Salunkhe, Oumnia El Fajri, Shanti Bhushan, David Thompson, Daphne O’Doherty, Tim O’Doherty, Allan Mason-Jones   +6 more
doaj   +1 more source

Out in the cold? A review of Early Middle Palaeolithic settlements in northern Central Europe, age data and geological preconditions for site formation and preservation

Boreas, EarlyView.
The characteristics of settlement of Neanderthals in northern Central Europe during the earlier phases of the Middle Palaeolithic (Marine Isotope Stage 8–6) have been a matter of debate for decades, specifically regarding the population dynamics at such latitudes during the coldest phases. In this paper, we review the known archaeological record of the
Gianpiero Di Maida, Jutta Winsemann, Malte Hoffmann, Tobias Lauer, Utz Böhner, Thomas Terberger   +5 more
wiley   +1 more source

Numerical Simulation of Taylor—Couette—Poiseuille Flow at Re = 10,000

Fluids, 2023
A fully developed turbulent flow in a concentric annulus, Re =10,000, ri/ro=0.5, with an inner rotating cylinder in the velocity range N=Uω/Ub=0÷4, is studied via a large-eddy simulation.
Andrey Gavrilov, Yaroslav Ignatenko
doaj   +1 more source

A State‐of‐the‐Art Study of Vortex‐Excited Vibration Problems in Large‐Span Flat Steel Box Girder Bridges

Engineering Reports, Volume 8, Issue 10, October 2026.
The paper consists of four parts. Specially, the first part analyzes the wind challenges of large‐span bridges, including the formation mechanism of wind‐induced vibration disaster of large‐span bridges and typical cases, as well as the limitations of the current wind design codes. The second part reviews the analysis models and experimental techniques
Sai Gong, Peng Tang, Shucheng Yang, Qiwen Jin, Jiawu Li   +4 more
wiley   +1 more source

Aerodynamic model comparison for an X-shaped vertical-axis wind turbine [PDF]

Wind Energy Science
This article presents a comparison study of different aerodynamic models for an X-shaped vertical-axis wind turbine and offers insight into the 3D aerodynamics of this rotor at fixed pitch offsets.
A. Giri Ajay, L. Morgan, Y. Wu, D. Bretos, A. Cascales, O. Pires, C. Ferreira   +6 more
doaj   +1 more source

Assessment of URANS approach for predicting twin impinging jets in a cross-flow [PDF]

, 2012
A very complex flow field is present when a vertical/short\ud take-off and landing (VSTOL) aircraft is operating in ground\ud effect. One major concern for this kind of aircraft in ground\ud effect is the possibility of ingestion of hot gases from the ...
Yang, Zhiyin, Yang, Z., Webb-Martin, S, Webb-Martin, S., S Webb-Martin (16134245), Zhiyin Yang (7121885)   +5 more
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An Optimized Multi‐Stage Drainage Cannula Design for Venoarterial Extracorporeal Membrane Oxygenation

Artificial Organs, Volume 50, Issue 10, Page 1372-1383, October 2026.
This study utilized an extensive optimization involving n = 540 design of experiments to produce a superior drainage cannula design. Compared to the clinically used Maquet model, our optimized design demonstrated reduced blood stagnation volumes, increased cannula tip velocities, and higher upper body drainage, potentially minimizing risk of thrombosis
Avishka Wickramarachchi, Mehrdad Khamooshi, Aidan Burrell, Shaun D. Gregory   +3 more
wiley   +1 more source

Numerical simulation of the dynamic stall of a NACA 0012 airfoil using DES and advanced OES/URANS modelling

, 2007
International audienceThis paper provides a study of the dynamic stall of a pitching NACA 0012 airfoil at 106 Reynolds number by means of numerical simulation.
Hoarau, Yannis, Harran, Gilles, Martinat, G., Braza, Marianna   +3 more
core   +1 more source

Machine‐Learning Enhanced Parametric Reynolds‐Averaged Navier‐Stokes Equations at the Full‐ and Reduced‐Order Levels

International Journal for Numerical Methods in Engineering, Volume 127, Issue 17, 15 September 2026.
ABSTRACT In this contribution, we focus on the Reynolds‐averaged Navier‐Stokes (RANS) models and their exploitation to build reliable reduced‐order models to further accelerate predictions for real‐time applications and many‐query scenarios. Specifically, we investigate how machine learning can be employed to enhance the predictive capabilities of the ...
Davide Oberto, Maria Strazzullo, Stefano Berrone   +2 more
wiley   +1 more source

Overview on the DeSiReH Project [PDF]

, 2013
DESIREH stands for “Design, Simulation and Flight Reynolds Number testing for advanced High Lift Solutions”. This EC-funded project is aimed to improve the aerodynamic design and simulation methodology of high-lift systems.
Wild, Jochen
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