Tootfinder

From David Suzuki
The undeniable economic case for climate action
https://davidsuzuki.org/story/the-undeniable-economic-case-for-climate-action/
Working to resolve the climate crisis is a tremendous economic opportunity. Even n…

The undeniable economic case for climate action
The fossil fuel industry has provided jobs and economic benefits to many in Canada and around the world, as did other harmful industries like tobacco — but at what price?

Scaling Analysis of the Swirling Wake of a Porous Disc: Application to Wind Turbines
Ernesto Fuentes Noriega, Nicolas Mazellier
https://arxiv.org/abs/2406.08667

Scaling Analysis of the Swirling Wake of a Porous Disc: Application to Wind Turbines
We report a comprehensive study of the wake of a porous disc, the design of which has been modified to incorporate a swirling motion at an inexpensive cost. The swirl intensity is passively controlled by varying the internal disc geometry, i.e. the pitch angle of the blades. A swirl number is introduced to characterise the competition between the linear (drag) and the azimuthal (swirl) momentums on the wake recovery. Assuming that swirl dominates the near wake and non-equilibrium turbulence the…

"Mesmerizing vertical turbine wall to enter customer trials this year"
#Energy #Renewables #WindTurbines

Mesmerizing vertical turbine wall to enter customer trials this year
Since revealing a concept for an energy generating wall back in 2021, designer Joe Doucet has been working on bringing the idea to life. That time is here with the launch of Airiva, a modular rotary wind turbine wall destined for installation on city buildings and infrastructure.

Improving Wind Turbine Testing with a Better Air Source
https://poliverso.org/display/0477a01e-447ca029-ad282b60995a84de
Improving Wind Turbine Testing with a Better Air Source When comparing the efficiency of different wind turbine blade designs, […

Improving Wind Turbine Testing with a Better Air Source
https://poliverso.org/display/0477a01e-447ca029-ad282b60995a84de
Improving Wind Turbine Testing with a Better Air Source When comparing the efficiency of different wind turbine blade designs, […

#Verpasstodon
Einige der zuletzt hier besonders häufig geteilten #News:
Bericht: Siemens baut Windturbine mit 21 Megawatt

Scrub oak, Quercus turbinella, with male flowers emerging, at Joshua Tree National Park in February
#naturalist

Wake dynamics of wind turbines in unsteady streamwise flow conditions
Nathaniel J. Wei, Adnan El Makdah, JiaCheng Hu, Frieder Kaiser, David E. Rival, John O. Dabiri
https://arxiv.org/abs/2406.11693

Wake dynamics of wind turbines in unsteady streamwise flow conditions
The unsteady flow physics of wind-turbine wakes under dynamic forcing conditions are critical to the modeling and control of wind farms for optimal power density. Unsteady forcing in the streamwise direction may be generated by unsteady inflow conditions in the atmospheric boundary layer, dynamic induction control of the turbine, or streamwise surge motions of a floating offshore wind turbine due to floating-platform oscillations. This study seeks to identify the dominant flow mechanisms in uns…

This https://arxiv.org/abs/2212.14517 has been replaced.
link: https://scholar.google.com/scholar?q=a

Modeling unsteady loads on wind-turbine blade sections from periodic structural oscillations and impinging gusts
Many traditional methods for wind turbine design and analysis assume quasi-steady aerodynamics, but atmospheric flows are inherently unsteady and modern turbine blades are susceptible to aeroelastic deformations. This study therefore evaluates the effectiveness of simple analytical models for capturing the effects of such unsteady conditions on wind-turbine blades. We consider a pitching and plunging airfoil in a periodic transverse gust as an idealization of unsteady loading scenarios on a bla…

Modelling Wind Turbines via Actuator Lines in High-Order h/p Solvers
Oscar A. Marino, Ra\'ul Sanz, Stefano Colombo, Ananth Sivaramakrishnan, Esteban Ferrer
https://arxiv.org/abs/2406.09993