Results 91 to 100 of about 13,611 (225)

CALCULATION OF ROCKET NOSE FAIRING SHELLS AERODYNAMIC CHARACTERISTICS

Научный вестник МГТУ ГА, 2018
The aerodynamic characteristics of the detachable elements of transport systems are introduced, they allow to calculate the trajectories of these elements after their separation and determine the size of elements impact areas.
V. T. Kalugin, A. Y. Lutsenko, D. K. Nazarova   +2 more
doaj   +1 more source

Solid Mechanics Segregated Solver Acceleration With Jacobian‐Free Newton‐Krylov

International Journal for Numerical Methods in Engineering, Volume 127, Issue 11, 15 June 2026.
ABSTRACT The segregated algorithm is a common approach for finite volumes solvers in solid mechanics, providing a memory‐efficient and straightforward implementation. Due to the inter‐coupling of the components through the source terms, it suffers from a slow convergence behavior in specific scenarios, such as geometries with significantly uneven ...
Andry Monlon, Alessandro Scolaro, Philip Cardiff, Ivor Clifford, Oskari Pakari, Mathieu Hursin   +5 more
wiley   +1 more source

lcs4Foam : an OpenFOAM function object to compute Lagrangian coherent structures

To facilitate the understanding and to quantitatively assess the material transport in fluids, a modern characterisation method has emerged in fluid dynamics in the last decades that is based on dynamical systems theory.
Habes, Constantin, von Kameke, Alexandra, Fadeli, Mohammed Elwardi, Marschall, Holger   +3 more
core   +1 more source

Effect of Semi-elliptical Outer Blade-surface on the Savonius Hydrokinetic Turbine Performance: A Numerical Investigation [PDF]

Journal of Applied Fluid Mechanics
The Savonius hydrokinetic turbine (SHT) is widely used for generating electricity from running water. However, most optimization work has been carried out on conventional blades with similar concave and convex profiles.
G. V. Babu, D. K. Patel
doaj   +1 more source

Numerical Simulation of a Synthetic Jet with OpenFOAM [PDF]

, 2015
Numerical simulations of flow surrounding a synthetic jet actuating device are presented. By modifying a dynamic mesh technique available in OpenFoam-a well-documented open-source solver for fluid dynamics, detailed computations of the sinusoidal motion of the synthetic jet diaphragm were possible.
Liu, Qiong, Kazakidi, Asimina, Medeiros, Marcello A. F., Theofilis, Vassilios   +3 more
openaire   +2 more sources

Particle detection in VOF-simulations with OpenFOAM

SoftwareX, 2020
The aim of this work is to improve the particle detection in the phase field of volume of fluid (VOF) simulations included in OpenFOAM. The reliable evaluation of the particle properties is a prerequisite for coupling the VOF method for the primary breakup with an Eulerian–Lagrangian simulation of the secondary breakup.
Andy Spitzenberger, Sebastian Neumann, Martin Heinrich, Rüdiger Schwarze   +3 more
openaire   +2 more sources

ChatCFD: A Large Language Model‐Driven Agent for End‐to‐End Computational Fluid Dynamics Automation with Structured Knowledge and Reasoning

Advanced Intelligent Discovery, Volume 2, Issue 3, June 2026.
Chat computational fluid dynamics (CFD) introduces an large language model (LLM)‐driven agent that automates OpenFOAM simulations end‐to‐end, attaining 82.1% execution success and 68.12% physical fidelity across 315 benchmarks—far surpassing prior systems.
E Fan, Kang Hu, Zhuowen Wu, Jiangyang Ge, Jiawei Miao, Yuzhi Zhang, He Sun, Weizong Wang, Tianhan Zhang   +8 more
wiley   +1 more source

Calculation of Time-Independent Maneuvering Coefficients of an Underwater Vehicle Based on Single Grid Structure

Journal of Eta Maritime Science
A simulation approach relying on a single grid topology has been employed to replicate the motion characteristics of different experimental facilities, including towing tank, rotating arm mechanism, and planar motion mechanism using a single mesh.
Oğuzhan Kırıkbaş, Şakir Bal
doaj   +1 more source

Investigation the effective factors on the forces acting on the scoop in a gas centrifuge machine in three-dimensional conditions with the DSMC method [PDF]

مجله علوم و فنون هسته‌ای
This article presents a simulation of a scoop inside the rotor of a gas centrifuge machine in three dimensions. The scoop inside the centrifuge machine is 3D and curved in shape. Therefore, a 3D simulation is necessary to analyze the proper flow behavior
S. Basiri, S.J. Safdari, S.M. Ghoreshi, S. Yousefi-Nasab   +3 more
doaj   +1 more source

Low Reynolds Number Flow in a Packed Bed of Rotated Bars

Chemical Engineering &Technology, Volume 49, Issue 6, June 2026.
Research Article: This study examines gas flow in a modular packed‐bed reactor with square bars arranged in rotated layers, creating complex void spaces. Using particle image velocimetry, measurements were taken at Reynolds numbers of 100 and 200. These results validated two particle‐resolved numerical simulations employing boundary‐conforming meshing ...
Wojciech Sadowski, Christin Velten, Maximilian Brömmer, Hakan Demir, Kerstin Hülz, Francesca di Mare, Katharina Zähringer, Viktor Scherer   +7 more
wiley   +1 more source