Results 41 to 50 of about 7,590 (193)

Ecological Comfort of Green Spaces for Urban Parking [PDF]

open access: yesE3S Web of Conferences
The article presents an overview of numerical solutions of computational fluid dynamics in the field of urban planning. The study is devoted to new solutions to maintain a comfortable microclimate in urban spaces in hot climates. Such territories require
Salieva Noilya   +2 more
doaj   +1 more source

Spacing Effects in Guided Vertical‐Axis Wind Turbine Arrays for Highway Energy Harvesting Under Multi‐Vehicle Wake Conditions

open access: yesEnergy Science &Engineering, EarlyView.
Three‐turbine guided Savonius arrays installed along highway corridors extract up to 697 J under multi‐vehicle wake conditions when spaced 12 rotor diameters apart—68% more than compact arrangements. Guide vanes boost output by 80–120%, and interior turbines respond most strongly to spacing, governing overall array performance. ABSTRACT Highway‐induced
Aydin Ulus, Stefan Ilie Moldovan
wiley   +1 more source

Credibility of CFD simulations for hydrogen jet-fire prediction: Combustion and radiation model assessment

open access: yesCase Studies in Thermal Engineering
This study evaluates the reliability of CFD methods for hydrogen jet-fire simulation by comparing workflows in OpenFOAM, Ansys Fluent, and FDS with experimental data. Key metrics include flame length and radiative heat flux.
Michał Mikke, Adam Krasuski
doaj   +1 more source

Effect of Microchannel Geometry on Nanoparticle Deposition in Nanofluid Flow

open access: yesInternational Journal for Numerical Methods in Fluids, EarlyView.
This study numerically analyzed nanoparticle deposition in microchannels with varying geometries. Deposition per unit area decreases significantly with increasing bend angle (28.612 to 8.941 between 30° and 120°) and bend radius (11.922 to 4.769 between 0.2 and 0.4 mm). Acute bends and small radii enhance centrifugal forces and flow separation, leading
Meng Wang   +3 more
wiley   +1 more source

Development of a Segregated Compressible Flow Solver for Turbomachinery Simulations

open access: yesJournal of Applied Fluid Mechanics, 2014
A steady multiple reference frame segregated compressible solver and an unsteady sliding mesh one are developed using OpenFOAM® to simulate turbomachinery.
Jesús Benajes   +3 more
doaj  

Modelling of wax deposition for waxy crude oil by ANSYS fluent

open access: yesJournal of Petroleum Exploration and Production Technology
Wax deposition is a major flow assurance issue arises during pipeline transportation and wax gelation phenomenon, a fundamental characteristic of this deposition process, necessitates detailed investigation to elucidate the underlying mechanisms.
Salman Hadi Dahwal   +2 more
doaj   +1 more source

Architecting nano‐Al/HMX/CuO energetic micro‐units unlocks superior interface and highly efficient combustion

open access: yesInfoMat, EarlyView.
Improving the dispersion of nano‐aluminum is of great importance in explosives and propellants. The spherical Al/HMX/CuO energetic micro‐units were prepared using microchannel technology, which significantly improved the uniformity and dispersion of nano‐Al. It also enhanced the mass and heat transfer efficiency between the fuel and oxidizer components,
Gazi Hao   +12 more
wiley   +1 more source

Modification in commercial bus model to overcome aerodynamic drag effect by using CFD analysis

open access: yesResults in Engineering, 2020
In India coach buses are generally used for long journey from 400 km to 600 km. Volvo B11R bus is widely used by private as well as state government players for its comfortable ride and luxurious feel. No engine is 100% economical so few other parameters
Chandrashekhar R. Jadhav   +1 more
doaj   +1 more source

Robotics for Crop Pollination: Recent Advances and Future Direction

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT There is great interest in alternative pollination strategies for crop production in the face of climate change and perennial threats to the traditional pollination mechanisms. This review explores the potential of robotic pollination as a promising solution to these challenges affecting crop fertilization, agricultural sustainability, and ...
Ranjan Sapkota   +3 more
wiley   +1 more source

Revealing Airflow–Particle Dynamics in Dry Powder Inhalers

open access: yesSmall, EarlyView.
An integrated framework combining device and formulation characterization, CFD–DEM simulations, and interpretable machine learning is established. This framework reveals how airflow and particle interactions govern powder dispersion across prevailing dry powder inhalers.
Jiale Chen   +12 more
wiley   +1 more source

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