Results 91 to 100 of about 6,038,062 (267)

Vertical distribution of intraseasonal variation signals in the Kuroshio Current source area during 2018–2020

Frontiers in Marine Science
In the Kuroshio Current (KC) source area, intraseasonal variation (ISV) plays a significant role in dynamic oceanic processes. This study used data collected from three moorings (122.7°E, 123°E, 123.3°E) along 18°N from January 2018 to May 2020 to ...
Haobo Gong, Haobo Gong, Fujun Wang, Fujun Wang, Feng Liu, Linlin Zhang, Linlin Zhang, Dunxin Hu, Dunxin Hu   +8 more
doaj   +1 more source

Dimensional Engineering of Wet‐Spun MOF‐Based Woven Fabrics for Superior Electromagnetic Wave Absorption

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This work fabricated MOF‐based woven absorbing fabrics with dimensional engineering via a wet spinning strategy. The absorbing fabrics achieve a reflection loss of −51.47 dB at 2.9 mm, with an effective absorption bandwidth reaching 3.54 GHz. The absorbing fabrics can be freely bent, stretched, and folded, with individual fibers exhibiting a break ...
Zihao Yan, Liyuan Guan, Qing Liu, Junhao Lin, Jianyong Yu, Bin Ding, Zhaoling Li   +6 more
wiley   +1 more source

A Numerical Investigation of the Effects of Piston Bowl Geometry and Spray Angle on Combustion, Performance and Emission of a Diesel Engine

Energy Science &Engineering, EarlyView.
A piston bowl's design and spray angle improve air‐fuel mixing, resulting in more complete combustion and higher efficiency. Ansys Forte 2023 R1 a CFD software was used to analyze the effects of five combustion chamber geometries of cylinder, modified re‐entrant, re‐entrant, double‐stepped, and stepped on engine performance, combustion, and emission ...
Md. Nazmul Haque, Abdullah Al Rifat, Tafsirul Hassan, Md. Ifthaker Alam, Mohammad Mehedi Hasan Kazol, Md. Ashraful Islam, Abidur Rahman Adib, Mizanur Rahman   +7 more
wiley   +1 more source

Energetic Constraints on Baroclinic Eddy Heat Transport With a Beta Effect in the Laboratory

Geophysical Research Letters
Hypotheses involving energetic constraints and the down‐gradient diffusion of heat in eddy parameterization theories are tested by estimating baroclinic eddy transports in rotating annulus laboratory experiments. Particle Imaging Velocimetry measurements
Cheng Qian, Peter L. Read, David P. Marshall   +2 more
doaj   +1 more source

The Relationship between Vertical Kinematic Eddy Heat Flux, Air Temperature and Turbulent Kinetic Energy in Atmospheric Boundary Layer: Baghdad City

Al-Mustansiriyah Journal of Science
Studying the heat flux in the boundary layer and understanding its relationship to the various atmospheric variables reflects positively on understanding the nature of turbulence in this layer and thus understanding the nature of the spread and movement
Nagham Abbas Mohammed
doaj   +1 more source

Simulations of eddy kinetic energy transport in barotropic turbulence

Physical Review Fluids, 2017
Spatially localized stochastic forcing generates turbulent dynamics in a 2D fluid with a uniform background vorticity gradient, enabling a study of the turbulent transport of kinetic energy.
openaire   +2 more sources

Turbulence‐Intensity Effects on the Aerodynamic Performance of an H‐Type Darrieus Wind Turbine: A URANS Parametric Study

Energy Science &Engineering, EarlyView.
Turbulence intensity from 1% to 25% was parametrically tested on a three‐bladed H‐type Darrieus rotor across five tip speed ratios (TSRs) using two‐dimensional URANS. The optimal TSR proved the most efficient and most robust operating point simultaneously, with Cp losses capped at 5.8% even at TI = 25%. ABSTRACT The effect of inlet turbulence intensity
Aydin Ulus
wiley   +1 more source

Intercomparison of a Regional Climate Model Ensemble for Selected European Catchments

International Journal of Climatology, EarlyView.
This study analyzes a regional climate model ensemble for water cycle and water resource research with two models. Results show that ICON generally outperforms TSMP1 simulations, mainly with 2‐m temperature and precipitation. These findings serve as a baseline evaluation that shows how key structural differences influence the model skill.
Jane Leonor Roque, Francis Da Silva Lopes, Julian Alberto Giles, Benjamin D. Gutknecht, Bernd Schalge, Yikui Zhang, Marco Ferro, Petra Friederichs, Klaus Goergen, Stefan Poll, Arianna Valmassoi   +10 more
wiley   +1 more source

Effect of internal vortex structures in nozzles on energy conversion efficiency of self-excited pulsed SC-CO2 jets

Meitan xuebao
The utilization of high-speed jet technology to fracture coal bodies and construct gas flow channels within coal seams is a crucial method for enhancing coalbed methane recovery efficiency. The supercritical carbon dioxide (SC-CO2) jet enhances coal-seam
Jianping WEI, Gangxia JING, Yong LIU, Huidong ZHANG, Mengya GAO, Xiang LI, Shiyan LI, Changjiang CHEN   +7 more
doaj   +1 more source

Turbulent Kinetic Energy Production in the Vane of a Low-Pressure Linear Turbine Cascade with Incoming Wakes

International Journal of Rotating Machinery, 2015
Incompressible large eddy simulation and direct numerical simulation of a low-pressure turbine at Re=5.18×104 and 1.48×105 with discrete incoming wakes are analyzed to identify the turbulent kinetic energy generation mechanism outside of the blade ...
V. Michelassi, J. G. Wissink
doaj   +1 more source