Results 91 to 100 of about 14,535 (202)

A comparison of modified K-ε turbulence models for buoyant plumes [PDF]

open access: yes, 2001
The effect of buoyancy on the production and dissipation of turbulent kinetic energy is investigated in variants of the popular k- ε turbulence model.
Rubini, Philip A.   +2 more
core  

Loess Studies in Aotearoa New Zealand

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Loess in Aotearoa New Zealand (ANZ) has been studied since its first documented recognition (on Banks Peninsula) in 1878 by Julius von Haast. A decade later, John Hardcastle revealed that southern ANZ loess was both glacial in origin and contained signals of past climates.
Brent V. Alloway   +4 more
wiley   +1 more source

Strategic Roadmap for Addressing Microplastic Pollution in the Global South: Bridging Monitoring Gaps, Harmonizing Methods, and Building Analytical Capacity

open access: yesEnvironmental Quality Management, Volume 35, Issue 4, Summer 2026.
ABSTRACT Microplastic (MP) pollution represents a growing environmental challenge, especially in tropical and subtropical coastal regions of the Global South, where methodological fragmentation, funding discontinuity, and dependence on external analytical infrastructure limit the production of comparable data and the formulation of evidence‐based ...
Guilherme Malafaia   +1 more
wiley   +1 more source

Physics‐Informed Bayesian Optimisation of Utility‐Scale Wind Farms in Synthetically Generated Complex Terrain Using LES

open access: yesWind Energy, Volume 29, Issue 6, June 2026.
ABSTRACT Optimising turbine layouts to maximise power output is crucial for wind farm development, particularly in complex terrain where analytical wake models fail to capture key flow physics. We present the first application of Bayesian optimisation (BO) combined with large eddy simulations (LES) for utility‐scale wind farm layout optimisation in ...
Christian Jané‐Ippel   +2 more
wiley   +1 more source

Regional Patterns and Regulatory Mechanisms of Aquatic Carbon Transfer in China

open access: yesGlobal Biogeochemical Cycles, Volume 40, Issue 6, June 2026.
Abstract Inland waters constitute vital components in the global carbon (C) cycle. Nevertheless, the regional patterns of aquatic carbon transfer across China remain poorly quantified, and their impacts on the terrestrial carbon budget remain unclear.
Yongmei Hou   +8 more
wiley   +1 more source

The effect of Surface Heterogeneity on the Temperature-Humidity Correlation and the Relative Transport Efficiency

open access: yes, 2008
We derive a conceptual model of the flow over heterogeneous terrain consisting of patches with contrasting Bowen ratios. Upward moving eddies are assumed to carry heterogeneous properties, whereas downward moving eddies carry homogeneous properties. This
Dirk Schüttemeyer   +3 more
core   +1 more source

Design Spectra for Evaluating the Dynamic Response of Buildings Under Thunderstorm Downbursts

open access: yesBuildings
This paper presents a spectral method to determine the effect of thunderstorm downbursts on structures. The method integrates the dynamic response of single oscillators subject to input accelerations induced by wind, based on classical earthquake ...
Jing Song   +2 more
doaj   +1 more source

Effect of Unstable Water Flow on Grain Transport: Insights From Laboratory Experiments Under Reduced Atmospheric Pressure

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract Nowadays, Mars presents an environment characterized by low atmospheric pressure (∼6 mbar), which profoundly alters water‐driven surface processes known from Earth. Under these conditions, water rapidly boils, cools, and stabilizes near the triple point, often freezing, which strongly limits its ability to transport sediment.
Ondřej Krýza   +7 more
wiley   +1 more source

The Role of Terrain and Convection on Microfront Formation Leading to Severe Low-Level Turbulence

open access: yes, 2003
Two low-level convectively-induced turbulence (CIT) events east of the Appalachian Mountains are investigated utilizing observations, satellite, radar, and numerical simulations. Both events had an inordinate amount of low-level turbulence reported, but
Cetola, Jeffrey David
core  

Integrated Photonic Processor Enabling Dynamic Mitigation of Turbulence-Induced Scintillation in an Optical Free Space Link

open access: yes, 2023
We present an integrated programmable optical processor implementing an adaptive optical receiver for the mitigation of turbulence-induced scintillation in a Free Space Optical communication link.
M. Re   +11 more
core  

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