Results 61 to 70 of about 2,759 (185)

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

Basal Force Probability Distributions in Thin‐Layer Granular Flows

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 8, August 2026.
Abstract Extreme geophysical flows, such as granular and debris flows, can significantly shape the landscape in steep lands and generate seismic signals that can be recorded over long distances. However, direct field measurements needed to constrain the granular physics remain difficult due to the damage potential of those flows.
Jun Fang, Hui Tang, Yifei Cui, Jens M. Turowski, Lu Jing, Clarence Edward Choi   +5 more
wiley   +1 more source

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

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

Virtual Soil Simulator—Finite Volume Method Implementation for the Unsaturated Porous Media Water Transport Model Including Film Flow and Isothermal Vapor Transport Phenomena

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 8, August 2026.
Abstract Modeling unsaturated water transport in porous media traditionally relies on the Richards equation (RE) with hydraulic conductivity formulations to consider only capillary liquid water flow. However, this simplification neglects thin water films adsorbed onto particle surfaces, which can contribute significantly to flow under medium to dry ...
M. Kozyra, K. Lamorski, C. Sławiński
wiley   +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

Avaliação da Acurácia Numérica em Simulações CFD de Convecção Natural via Grid Convergence Index usando OpenFOAM

Revista Principia
A transferência de calor por convecção natural é um fenômeno de grande relevância, sendo frequentemente analisada por meio de simulações em Fluidodinâmica Computacional (CFD).
Thauã Albert da Graça Santos, Nuccia Carla Arruda de Sousa   +1 more
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

A Semi‐Resolved VOF‐DEM Coupling Method for Bedload Transport of Non‐Spherical Particles

Water Resources Research, Volume 62, Issue 8, August 2026.
Abstract Bedload transport of coarse sediments involves complex particle‐flow interactions that govern sediment motion and bed surface evolution. In this study, a semi‐resolved CFD‐DEM method is developed to simulate bedload sediment dynamics, in which the background fluid information for each particle is calculated using a Gaussian kernel function ...
Rangang Zhang, Shengfa Yang, Tangzhi Liu, Jiang Hu, Wenjie Li, Peng Zhang   +5 more
wiley   +1 more source

OpenFOAM Simulation of Microfluidic Molecular Communications: Method and Experimental Validation

IEEE Access
The convergence of microfluidics and Molecular Communication (MC) has garnered significant attention in the context of the emerging Internet of Bio-Nano Things (IoBNT) paradigm.
Pit Hofmann, Pengjie Zhou, Changmin Lee, Martin Reisslein, Frank H. P. Fitzek, Chan-Byoung Chae   +5 more
doaj   +1 more source