Results 61 to 70 of about 6,869 (224)

A robust extension to the triple plane pressure mode matching method by filtering convective perturbations

open access: yes, 2015
Time-periodic CFD simulations are widely used to investigate turbomachinery components. The triple-plane pressure mode matching method (TPP) developed by Ovenden and Rienstra extracts the acoustic part in such simulations.
Guérin, Sébastien   +2 more
core   +1 more source

On the Reliability of Eddy Viscosity Based Turbulence Models in Predicting Turbulent Flow past a Circular Cylinder Using URANS Approach

open access: yesJournal of Applied Fluid Mechanics, 2012
Turbulent flow past circular cylinder at moderate to high Reynolds number has been analysed employing an secondorder time accurate pressure-based finite volume method solving two-dimensional Unsteady Reynolds Averaged Navier Stokes (URANS) equations ...
B.N Rajani, A. Kandasamy, S. Majumdar
doaj  

NUMERICAL AND EXPERIMENTAL CALCULATION OF ROLL AMPLITUDE EFFECT ON ROLL DAMPING

open access: yesBrodogradnja, 2019
Roll motion is still a challenging problem in naval architecture and an adequate prediction of this physical phenomenon is important because of its undesirable effects such as capsizing.
Burak Yıldız   +3 more
doaj   +1 more source

Modeling Interactions and Dynamic Saturation Processes in Karst Media

open access: yesWater Resources Research, Volume 62, Issue 2, February 2026.
Abstract The simulation of karst aquifers is highly challenging due to complex conduit‐matrix interactions. This study utilizes KarstFOAM, a high‐fidelity, physics‐based numerical model, to address these challenges. KarstFOAM integrates (a) a unified single‐domain Forchheimer–Darcy–Brinkman–Stokes (FDBS) formulation that transitions naturally across ...
Fuyun Huang   +5 more
wiley   +1 more source

Die höchsten Oxidationsstufen der Seltenerdelemente und die Probleme mit den Praseodym(+5)‐Verbindungen

open access: yesAngewandte Chemie, Volume 138, Issue 1, 2 January 2026.
Alle Seltenerdelemente bilden bekanntlich tri‐ und auch di‐valente Verbindungen. Wenige tetra‐valente Verbindungen sind auch bekannt; kürzlich wurden die ersten Moleküle und Kristalle mit Praseodym(+5) synthetisiert. Der hier definierte atomare Ionisations‐Quotient IQ legt nahe, dass Ln(+4)‐Verbindungen mit geeigneten Liganden für fast alle 4f‐Elemente
Lian‐Wei Ye   +2 more
wiley   +1 more source

Turbulence Modeling Technique has Significant Effects on the Optimization of Centrifugal Blood Pumps

open access: yesIEEE Access
Blood pumps need to be further optimized to reduce blood damage and associated clinical complications. Turbulence is the key factor affecting blood damage.
Zhigang Pan, Fei-Hong Gao, Peng Wu
doaj   +1 more source

Active Fluid Gurney Flaps, Controllable Lift Enhancement Toward Wind Turbine Power Production Regulation

open access: yesWind Energy, Volume 29, Issue 1, January 2026.
ABSTRACT Meeting the rising demand for renewable energy requires innovative solutions to enhance wind power extraction, particularly given demographic and geographic constraints on wind farm deployment. Active high‐lift devices, such as the Active Fluid Gurney Flap (AFGF), offer a promising approach that can dynamically modify aerodynamic performance ...
Mario Lucas, Jorge Saavedra
wiley   +1 more source

Flow and drag force around a free surface piercing cylinder for environmental applications [PDF]

open access: yes, 2017
This paper investigates flows around a free surface piercing cylinder with Froude number ...
Cassan, Ludovic   +3 more
core   +3 more sources

A comparison study on the capabilities of turbulence models and density models of CFD on realistic terrain

open access: yesMeteorologische Zeitschrift, 2018
Two groups of numerical tests were carried out in the mountainous area adjacent to the Hong Kong International Airport (HKIA) in order to test the wind field simulation capability of computational fluid dynamics (CFD) over realistic complex terrain.
Lei Li, Li-Jie Zhang, P.W. Chan
doaj   +1 more source

Support Structure Modelling in Actuator Line Method Large Eddy Simulations of Wind Turbine Wakes

open access: yesWind Energy, Volume 29, Issue 1, January 2026.
ABSTRACT While advancements in the prediction of wind turbine loads and wakes within the actuator line method large eddy simulation (ALM‐LES) framework have been an active research topic in recent years, the modelling of the tower and nacelle has received comparatively less attention.
Markella Zormpa   +2 more
wiley   +1 more source

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