Results 21 to 30 of about 1,091,411 (335)

Cfd Simulation of Wall Impingement of Tear Shape Viscoplastic Drops Utilizing Openfoam®

open access: yesApplied Rheology, 2013
The main objective of this study is to get insight into the dynamic behavior of viscoplastic drop in impingement process in which the Capillary number is greater than one.
Noroozi S.   +2 more
doaj   +1 more source

Thermal Characterization of Eicosane/Graphite Nano-Composite-Based Phase Change Material [PDF]

open access: yesJournal of Renewable Energy and Environment, 2023
Phase Change Materials (PCMs) have received much consideration as thermal energy storage systems due to their high storage capacity. However, their heat transfer rate is limited because of the low thermal conductivity.
Ala Moradi   +4 more
doaj   +1 more source

Effect of Bubble/Droplet Morphology and Slippage on Attachment Induction Time in Deoiling Flotation Process

open access: yesJournal of Chemical and Petroleum Engineering, 2013
A modified model has been analytically developed to describe the induction time of an elliptic air bubble in contact with an elliptic hydrophobic oil droplet.
Mona Eftekhardadkhah   +1 more
doaj   +1 more source

Lattice Fluid Dynamics: Thirty-five Years Down the Road [PDF]

open access: yesarXiv, 2022
We comment on the role and impact of lattice fluid dynamics on the general landscape of computational fluid dynamics. Starting from the historical development of Lattice Gas Cellular Automata, we move on to a cursory appraisal of the main applications of the Lattice Boltzmann method and challenges ahead.
arxiv  

Stability of Optimal Controls for the Stationary Boussinesq Equations

open access: yesInternational Journal of Differential Equations, 2011
The stationary Boussinesq equations describing the heat transfer in the viscous heat-conducting fluid under inhomogeneous Dirichlet boundary conditions for velocity and mixed boundary conditions for temperature are considered.
Gennady Alekseev, Dmitry Tereshko
doaj   +1 more source

Geometric shape and tensile forces on silo bags for grain storage

open access: yesJournal of Agricultural Engineering, 2019
This work consists in the analytical derivation and numerical solution of the equation which determines the shape of the section of a silo bag: a long horizontal cylindrical plastic bag filled with either a liquid or a granular material which behaves ...
Ana Scarabino
doaj   +1 more source

Experimental study on artificial environment to promote onset of turbulence

open access: yesJournal of Fluid Science and Technology, 2020
A wind tunnel experiment was performed to investigate the requirements for providing a suitable environment for easily creating a localized turbulent region in a laminar boundary layer.
Yukizumi YANAGISAWA   +3 more
doaj   +1 more source

Derivation of Three-Derivative Two-Step Runge–Kutta Methods

open access: yesMathematics
In this paper, we develop explicit three-derivative two-step Runge–Kutta (ThDTSRK) schemes, and propose a simpler general form of the order accuracy conditions (p≤7) by Albrecht’s approach, compared to the order conditions in terms of rooted trees.
Xueyu Qin, Jian Yu, Chao Yan
doaj   +1 more source

Fluid Simulation System Based on Graph Neural Network [PDF]

open access: yesarXiv, 2022
Traditional computational fluid dynamics calculates the physical information of the flow field by solving partial differential equations, which takes a long time to calculate and consumes a lot of computational resources. We build a fluid simulation simulator based on the graph neural network architecture. The simulator has fast computing speed and low
arxiv  

Strong Stability Preserving Two-Derivative Two-Step Runge-Kutta Methods

open access: yesMathematics
In this study, we introduce the explicit strong stability preserving (SSP) two-derivative two-step Runge-Kutta (TDTSRK) methods. We propose the order conditions using Albrecht’s approach, comparing to the order conditions expressed in terms of rooted ...
Xueyu Qin, Zhenhua Jiang, Chao Yan
doaj   +1 more source

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