Results 61 to 70 of about 142,824 (305)

Application of Computational Fluid Dynamics in cooling systems design for special purpose objects [PDF]

open access: yesFME Transactions, 2014
The paper illustrates the basic methodology and principal problems of CFD (Computational Fluid Dynamics) approach in designing a proper cooling system (capacity of cooling, determination of optimal position, number and size of openings for cooling, etc.)
Banjac Miloš J.
doaj  

Evaluation of CFD simulations with wind tunnel experiments: pressure coefficients at openings in sawtooth building

open access: yesActa Scientiarum: Technology, 2018
Wind tunnel experiments and Computational Fluid Dynamics (CFD) simulations are used to analyze natural ventilation in a sawtooth roof building. A 1:10 scale model is tested in an atmospheric boundary layer wind tunnel.
Marieli Azoia Lukiantchuki   +3 more
doaj   +1 more source

Imposing resolved turbulence in CFD simulations

open access: yesWind Energy, 2011
AbstractIn large‐eddy simulations, the inflow velocity field should contain resolved turbulence. This paper describes and analyzes two methods for imposing resolved turbulence in the interior of the domain in Computational Fluid Dynamics simulations. The intended application of the methods is to impose resolved turbulence immediately upstream of the ...
Gilling, Lasse, Sørensen, N. N.
openaire   +1 more source

Universal Solvent Escape Strategies for Efficient Curing of Hydrogen‐Bond‐Rich 3D Printing Inks

open access: yesAdvanced Science, EarlyView.
This study developed a new 3D printing method for hydrogen‐bonded polymers by combining solvent replacement, nanoparticles, and optimized printing paths. This allows fast, precise scaffold fabrication. The scaffolds can be easily customized and release therapeutic agents slowly through protonation, enabling personalized bone, blood vessel, and nerve ...
Jie Chen   +11 more
wiley   +1 more source

Hydraulic Model Study of Waller Creek Tunnel Project for the City of Austin, Texas [PDF]

open access: yes, 2010
This report provides the results of a series of model tests designed to understand the fluid dynamics involved with the Waller Creek Tunnel.Waller Creek is centrally located within the City of Austin, Texas, and has one of the most densely developed ...
Gessler, Dan   +3 more
core   +1 more source

Free‐Volume Regulation Enables Significantly Enhanced Electrical Breakdown via Short‐Chain Molecular Spatial‐Positioning Intercalation into Poly(vinylidene fluoride)

open access: yesAdvanced Science, EarlyView.
An innovative molecular spatial‐positioning shimming strategy is developed to optimize the electrical properties of poly(vinylidene fluoride) (PVDF). By intercalating polyethylene wax (PE wax) short‐chain molecules into PVDF's free volume, the film achieves a significantly enhanced energy density of 32.67 J cm−3.
Ziyue Wang, Jiyang Xie, Wanbiao Hu
wiley   +1 more source

Single‐Atom Cobalt Species on Curved Hollow Carbon Sphere: Breaking Linear Scaling Relationship Limitations in Electrocatalytic Deactivation of Dilute Antibiotic Pollutants

open access: yesAdvanced Science, EarlyView.
A cobalt (Co)‐SACs consisting of single‐atom Co anchored on a nitrogen‐doped hollow porous carbon sphere (Co1/N‐HCS) is fabricated for electrocatalytic hydrodechlorination of dilute antibiotics. The hollow porous architecture of N‐HCS concentrates the antibiotics, while its curved surface promotes proton transfer at the Co1 site via localized electric ...
Jiahong Zou   +8 more
wiley   +1 more source

CFD-DEM and TFM Simulations of Spouted Bed

open access: yesChemical Engineering Transactions, 2017
This research compared TFM and CFD-DEM models for simulation of a slot-rectangular spouted bed. Limits, drawbacks and benefits of the models were discussed and compared.
S. Golshan, B. Esgandari, R. Zarghami
doaj   +1 more source

Simulation of tail boom vibrations using main rotor-fuselage Computational Fluid Dynamics (CFD) [PDF]

open access: yes, 2017
In this work, fully-resolved rotor-fuselage interactional aerodynamics is used as the forcing term in a model based on the Euler-Bernoulli equation, aiming to simulate helicopter tail-boom vibration.
Barakos, George N.   +4 more
core   +2 more sources

Leveraging Digital Advanced Manufacturing to Enable Polymer Electrolyte Fuel Cells With Ultrahigh Gravimetric Power Density

open access: yesAdvanced Energy Materials, EarlyView.
This study employs digital advanced manufacturing to develop lightweight, compact porous distributors as alternatives to conventional bipolar plates in PEM fuel cells. A graphene‐coated nickel foam achieves a power density of 1.52 W cm−2, while titanium‐based designs deliver lightweight solutions: an LPBF‐fabricated Gyroid lattice reaches 1.36 W cm−2 ...
Hadi Heidary   +9 more
wiley   +1 more source

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