Results 21 to 30 of about 3,882,268 (171)

CFD analysis of terrain induced turbulence at Kristiansand airport, Kjevik

Aviation, 2013
The paper presents the finding of a study conducted in order to analyse the characteristics of flow in a real complex terrain in the vicinity of the Kristiansand Airport (Kjevik), Norway.
Adil Rasheed, Karstein Sørli
doaj   +1 more source

Update of upper level turbulence forecast by reducing unphysical components of topography in the numerical weather prediction model

Geophysical Research Letters, 2016
On 2 November 2015, unrealistically large areas of light‐or‐stronger turbulence were predicted by the WRF‐RAP (Weather Research and Forecast Rapid Refresh)‐based operational turbulence forecast system over the western U.S. mountainous regions, which were
Sang‐Hun Park, Jung‐Hoon Kim, Robert D. Sharman, Joseph B. Klemp   +3 more
doaj   +1 more source

Characterizing the Wake Effects on Wind Power Generator Operation by Data-Driven Techniques

Energies, 2023
Wakes between neighboring wind turbines are a significant source of energy loss in wind farm operations. Extensive research has been conducted to analyze and understand wind turbine wakes, ranging from aerodynamic descriptions to advanced control ...
Davide Astolfi, Fabrizio De Caro, Alfredo Vaccaro   +2 more
doaj   +1 more source

Stably stratified canopy flow in complex terrain [PDF]

Atmospheric Chemistry and Physics, 2015
Stably stratified canopy flow in complex terrain has been considered a difficult condition for measuring net ecosystem–atmosphere exchanges of carbon, water vapor, and energy.
X. Xu, C. Yi, E. Kutter
doaj   +1 more source

The Moral Manager in the Market: How CFOs' Ethical Intelligence Drives ESG Investment in Emerging Economies' Dual Markets

Business Strategy and the Environment, EarlyView.
ABSTRACT What propels a CFO in an emerging economy to champion ESG investments when formal regulations are weak? Moving beyond structural explanations, we provide a behavioural account arguing that a manager's internal ethical compass—moral intelligence (MI)—is a key driver.
AmirHossein ArminKia, Davood Askarany, Seyed Hamed Fahimifard, Seyedeh Kimia Shafahi Moghadam, Seyed Shayan Alavi   +4 more
wiley   +1 more source

Experimental Study on Local Wind Pressure Characteristics of Arched Plastic-Film Greenhouse Under Different Terrain Categories

Applied Sciences
Arched plastic-film greenhouses are widely used in agricultural production because of their low cost and strong adaptability. However, their lightweight and flexible characteristics make them highly vulnerable to wind-induced damage.
Yilin Peng, Yimin Dai, Taiting Liu
doaj   +1 more source

Accelerated impact of airborne glaciogenic seeding of stratiform clouds by turbulence [PDF]

Atmospheric Chemistry and Physics
Several recent studies have reported complete cloud glaciation induced by airborne-based glaciogenic cloud seeding over plains. Since turbulence is an important factor controlling mixed-phase clouds, including ice initiation, snow growth, and cloud ...
M. Chen, X. Jing, J. Li, J. Yang, J. Yang, X. Dong, B. Geerts, Y. Yin, B. Chen, L. Xue, M. Huang, P. Tian, S. Hua   +12 more
doaj   +1 more source

High‐resolution simulation of a severe case of low‐level windshear at the Hong Kong International Airport: Turbulence intensity and sensitivity to turbulence parameterization scheme

Atmospheric Science Letters, 2022
Large eddy simulations are performed for a severe windshear case of terrain‐induced airflow disturbances at the Hong Kong International Airport. The objectives of the study include: (i) to investigate the performance of large eddy simulation in capturing
Pak Wai Chan, Kai Kwong Lai, Qiu Sheng Li   +2 more
doaj   +1 more source

Do High Temperatures Affect Firm Demography? Evidence From Italy

Business Strategy and the Environment, EarlyView.
ABSTRACT This study analyses the impact of high temperatures and heat stress on Italian firm demography during 2009–2022. Combining provincial‐firm‐level data with a high‐resolution multidecadal meteorological dataset, we investigate whether high temperatures—absolute and anomalous—affect firm entry and exit rates.
Concetta Carnevale, Danilo Drago, Francesco Trivieri, Francesco De Simone   +3 more
wiley   +1 more source

Demulsifying agent simplified model for offshore oil wells

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This article addresses key challenges in offshore petroleum production caused by multiphase flow instabilities, such as slug flow and emulsion formation. Traditionally, severe slugging is mitigated by increasing wellhead backpressure through partial choke valve closure. In this context, a simplified dynamic model—the fast offshore wells model (
Fernanda Bernardi de Souza, Bárbara Isabel Santarossa, Ricardo França Rodrigues, Fabio Diehl, Marcelo Farenzena, Jorge Otávio Trierweiler   +5 more
wiley   +1 more source