Results 61 to 70 of about 706,134 (292)

Developing spline based overset grid assembling approach and application to unsteady flow around a moving body [PDF]

, 2015
Overset or Chimera grid approach is one of methods to cope with complex geometries. A spline based overset grid assembling system has been developed.
Kobayashi, Hiroshi, Kodama, Yoshiaki
core  

Distributed State Estimation for Mobile Robots in LiDAR Sensor Networks With Intermittent Inertial Measurements

Advanced Intelligent Systems, EarlyView.
A scalable distributed observer framework for LiDAR sensor networks is presented for robust tracking and pose estimation of mobile robots. By combining adaptable 3D detection, clustering‐based communication reduction, and intermittent inertial fusion, accurate and efficient estimation is achieved under occlusions and sensing constraints, with formally ...
Isabella Luppi, Ehsan Hashemi
wiley   +1 more source

Numerical Investigation of the Effect of Spray Rail Designs on the Slamming Behaviour of Planing Hulls [PDF]

Journal of Applied Fluid Mechanics
Slamming loads represent a major design and operational challenge for planing hulls due to their influence on structural integrity and crew comfort.
M. Mohsin, N. M. R. Shaharuddin, M. A. A. Hasnan, M. H. S. Abdol Azis, O. Yaakob, A. Trimulyono   +5 more
doaj   +1 more source

Graph Neural Network‐Based Reinforcement Learning for Decentralized Multi‐Robot Manipulation

Advanced Intelligent Systems, EarlyView.
Robot arms lifting a large object face a trade‐off: centralized controllers explode in parameters, while decentralized ones cannot coordinate. A GNN resolves this—each arm runs its own network but acts on the full team state, achieving centralized‐level coordination with decentralized execution. Trained across team sizes, a single policy scales to four‐
Tong Chen, Bo Fu, Dawn Tilbury, Kira Barton   +3 more
wiley   +1 more source

A comparative study of turbulence models for overset grids

30th Aerospace Sciences Meeting and Exhibit, 1992
The implementation of two different types of turbulence models for a flow solver using the Chimera overset grid method is examined. Various turbulence model characteristics, such as length scale determination and transition modeling, are found to have a significant impact on the computed pressure distribution for a multielement airfoil case.
KEVIN RENZE, PIETER BUNING, R. RAJAGOPALAN   +2 more
openaire   +4 more sources

3D Closed‐Loop Navigation of Magnetic Microswimmers Using Vision‐Derived Depth Feedback

Advanced Intelligent Systems, EarlyView.
A planar magnetic microswimmer is navigated in three dimensions under a standard microscope. Image defocus supplies a real‐time depth cue, and model‐predictive control with A* planning steers the body on surfaces and in free swimming. Axial position is regulated by propulsion alone, without magnetic field gradients or extra cameras.
Yasin Cagatay Duygu, Sangwon Lee, Min Jun Kim   +2 more
wiley   +1 more source

Uncertainty Analysis and Maneuver Simulation of Standard Ship Model

Journal of Marine Science and Engineering
Maneuver simulation of a standard ship model gives indication of numerical accuracy. In the numerical calculation of ship maneuvering, uncertainty analysis is a necessary step to ensure the accuracy of the calculation.
Hui Li, Nan Zhao, Jian Zhou, Xiangyu Chen, Chenxu Wang   +4 more
doaj   +1 more source

Overset grid applications on distributed memory MIMD computers [PDF]

, 1994
Analysis of modern aerospace vehicles requires the computation of flowfields about complex three dimensional geometries composed of regions with varying spatial resolution requirements.
Chawla, Kalpana, Weeratunga, Sisira
core  

Multi‐Stage Social Value Orientation‐Based Lane‐Changing Driving for Autonomous Vehicles

Advanced Intelligent Systems, EarlyView.
A multi‐stage SVO framework is developed to dynamically infer the social preferences of surrounding vehicles from human driving data. By combining offline learning, online SVO estimation, temporal intention tracking, and interaction‐aware planning, the framework enables autonomous vehicles to adapt lane‐changing decisions and trajectories to evolving ...
Nongrui Qin, Lei Cai, Yilang Luo, Ming Yue, Hsin Guan   +4 more
wiley   +1 more source

ExaWind: Open‐source CFD for hybrid‐RANS/LES geometry‐resolved wind turbine simulations in atmospheric flows

Wind Energy
Predictive high‐fidelity modeling of wind turbines with computational fluid dynamics, wherein turbine geometry is resolved in an atmospheric boundary layer, is important to understanding complex flow accounting for design strategies and operational ...
Ashesh Sharma, Michael J. Brazell, Ganesh Vijayakumar, Shreyas Ananthan, Lawrence Cheung, Nathaniel deVelder, Marc T. Henry de Frahan, Neil Matula, Paul Mullowney, Jon Rood, Philip Sakievich, Ann Almgren, Paul S. Crozier, Michael Sprague   +13 more
doaj   +1 more source