Results 51 to 60 of about 17,478 (257)

Effect of Flood Water Diffuser on Flow Pattern of Water during Road Crossing

MATEC Web of Conferences, 2014
One of the methods to reduce the velocity of flood water flow across roads is to design obstacle objects as diffusers and place them alongside the road shoulder. The velocity reduction of water flow depends on the diffusion pattern of water.
Abdul Ghani A.N., Kasnon N.
doaj   +1 more source

Microstructure‐Controlled Crack Propagation and Fracture Resistance in MoSiBTiC Alloy Revealed by Multiscale Extended Finite Element Method Modeling

Advanced Engineering Materials, EarlyView.
A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du, Takahiro Kaneko, Xinyu Yan, Takahito Ohmura, Kyosuke Yoshimi   +4 more
wiley   +1 more source

Prediction of 2D steady flow velocity fields with a CNN surrogate trained on RANS simulations [PDF]

EPJ Web of Conferences
We present a data-driven surrogate modeling framework based on convolutional neural networks (CNNs) for predicting steady-state two-dimensional velocity fields in incompressible flows.
Jakubcová Michala, Chaloupecká Hana, Nosek Štěpán   +2 more
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Multi-Agent Obstacle Avoidance Using Velocity Obstacles and Control Barrier Functions

2025 IEEE International Conference on Robotics and Automation (ICRA)
Velocity Obstacles (VO) methods form a paradigm for collision avoidance strategies among moving obstacles and agents. While VO methods perform well in simple multi-agent environments, they don't guarantee safety and can show overly conservative behavior in common situations.
Alejandro Sánchez-Roncero, Rafael I. Cabral Muchacho, Petter Ögren   +2 more
openaire   +2 more sources

A Non‐Reciprocal Architected Porous Medium

Advanced Functional Materials, EarlyView.
ABSTRACT In several fluid flow, energy‐dumping, and energy‐harvesting applications, a dominant flow direction or dominant resistance direction is desirable. In this study, we propose a simple modular geometry that doubles flow resistance in one direction relative to the opposite direction, while maintaining laminar viscous flow.
Clément Vezies, Pablo Zavattieri, Nicolás Silin   +2 more
wiley   +1 more source

Unmanned Aerial Vehicle Obstacle Avoidance Based Custom Elliptic Domain

Drones
The velocity obstacles (VO) method is widely employed in real-time obstacle avoidance research for UAVs due to its succinct mathematical foundation and rapid, dynamic planning abilities.
Yong Liao, Yuxin Wu, Shichang Zhao, Dan Zhang   +3 more
doaj   +1 more source

Effect of gable roof with various roof pitches and obstacle heights on natural ventilation performance for an isolated building

Journal of Mechanical Engineering and Sciences, 2022
Numerical analysis based on CFD steady RANS equations was used to study the  airflow characteristics around and within an isolated gable roof building. Parameters that are the main study focus of this research include: streamlines of normalized velocity,
AKKIK ZOBAIED, Vin Cent Tai, Tze Fong Go, Perk Lin Chong, Lip Kean Moey   +4 more
doaj   +1 more source

Transfer Printing and Reconfiguration of Soft Electronics Using Digital Microfluidics and Laser Machining

Advanced Functional Materials, EarlyView.
This paper presents a digital microfluidics‐based technique for transferring and reconfiguring soft nanomembranes. Laser‐machined nanothin membranes are picked up, transported, and aligned via tailored surface tension and the actuation of water droplets, enabling the development of flexible electronics, the integration of functional materials on 3D ...
Quang Anh Nguyen, Chi Cong Nguyen, Tran Bach Dang, Phuoc Thien Phan, Jordan Thorpe, Michael Listyawan, Nhat Minh Doan, Sinuo Zhao, Hongru Chen, Trung Thien Hoang, Mingsheng Xu, Jisheng Han, Thanh Nho Do, Adam Hill, Timothée Mouterde, Hoang‐Phuong Phan   +15 more
wiley   +1 more source

Numerical Investigation into the Effects of a Viscous Fluid Seabed on Wave Scattering with a Fixed Rectangular Obstacle

Mathematics, 2022
We study numerically the effects of a viscous fluid seabed on wave scattering with a solid obstacle of rectangular shape fixed at the free surface, on the seafloor, or internally within the water layer. The computational model is based on OpenFOAM and it
Kuan-Yu Zheng, Chen-Wei Chang, I-Chi Chan   +2 more
doaj   +1 more source