Results 61 to 70 of about 12,359,623 (295)

Oscillationless Explicit Method on Overset Grid for Advective Equation

JAMSTEC Report of Research and Development, 2013
2Characteristics of numerical errors using the overset grid method are investigated. The overset grid method has some problems with the interpolation of data between each mesh. In the case of the computing advective equation, a traveling wave passing through an interface of overlapping meshes causes numerical oscillations.
Sugimura, Takeshi, Sakagami, Hitoshi
openaire   +2 more sources

Deformable Overset Grid for Unsteady Aerodynamic Simulation

, 2016
A deformable overset grid method was proposed to simulate the unsteady aerodynamic problems with multiple flexible moving bodies. This method uses an unstructured overset grid locally coupled with mesh deformation to achieve both robustness and ...
Ning Qin, Dongming Luo, Xiao, T., Qin, N., Deng, S., Luo, D., Tianhang Xiao, Shuanghou Deng   +7 more
core   +1 more source

Generative and Experimental Validation of High Refractive Index Polymers via Domain Knowledge Approach with Small Data

Advanced Intelligent Discovery, EarlyView.
This research demonstrates that the combination of domain knowledge–based multiple regression, multi‐objective Bayesian optimization, and generative models is a suitable prediction tool for candidates of high refractive index polymers, even with the constraints in the model trained on limited data. The experimental validation can reproduce the proposed
Takuya Yokoo, Seigo Watanabe, Hana Matsunaga, Kenichi Oyaizu   +3 more
wiley   +1 more source

Predicting Performance of Hall Effect Ion Source Using Machine Learning

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This study introduces HallNN, a machine learning tool for predicting Hall effect ion source performance using a neural network ensemble trained on data generated from numerical simulations. HallNN provides faster and more accurate predictions than numerical methods and traditional scaling laws, making it valuable for designing and optimizing Hall ...
Jaehong Park, Guentae Doh, Dongho Lee, Youngho Kim, Changmin Shin, Su‐Jin Shin, Young‐Chul Ghim, Sanghoo Park, Wonho Choe   +8 more
wiley   +1 more source

A hybrid lattice Boltzmann - Navier-Stokes method on overset grids

AIAA AVIATION 2023 Forum, 2023
Cet article présente une stratégie de maillages recouvrants dans le contexte d'une méthode hybride lattice Boltzmann - Navier-Stokes pour des applications aérodynamiques et aéroacoustiques instationnaires. Alors que l'approche de maillages recouvrants est généralement utilisée pour superposer entre elles plusieurs grilles de différentes topologies par ...
Suss, Alexandre, Mary, Ivan, Le Garrec, Thomas, Marié, Simon   +3 more
openaire   +1 more source

Numerical investigation of the impact of wall boundaries on aerodynamic noise in high-speed trains

Engineering Applications of Computational Fluid Mechanics
As the operating speed of high-speed trains continues to rise, aerodynamic noise has become a critical factor influencing train performance and passenger comfort, especially in confined environments like tunnels. In this study, a comprehensive simulation
Zhi-Yuan Ma, Qing-Song Feng, Prasert Prapamonthon, Gong Cheng, Zhen-Xu Sun, Di-Long Guo, Guo-Wei Yang   +6 more
doaj   +1 more source

CFD prediction of submarine motion during emergency surfacing

Zhongguo Jianchuan Yanjiu, 2019
[Objectives] Emergency surfacing is an important aspect of submarine vitality which is closely related to submarine safety. In order to master the motion laws of submarine during emergency surfacing performance,[Methods] this paper establishes a ...
LI Rijie, CHEN Qinglong, CHANG Wentian
doaj   +1 more source

Study on Roll Motion Characteristics of a Rectangular Floating Structure in Regular Waves [PDF]

한국해양공학회지, 2019
This study focused on the roll motion characteristics of a two-dimensional (2D) rectangular floating structure under regular beam sea conditions. An experiment was conducted in a 2D wave tank for a roll free decay test in calm water and the roll motion ...
Min-Gyu Kim, Kwang-Hyo Jung, Sung-Boo Park, Gang-Nam Lee, Il-Ryong Park, Sung-Bu Suh   +5 more
doaj   +1 more source

Numerical Study on the Waterjet–Hull Interaction of a Free-Running Catamaran

Journal of Marine Science and Engineering, 2023
Waterjet–hull interaction is the hot point and research focus in the research of waterjet-propelled crafts. This paper presents numerical studies on the interaction between a waterjet system and a catamaran.
Yanlin Zou, Dakui Feng, Weihua Deng, Jun Yang, Hang Zhang   +4 more
doaj   +1 more source

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