Results 21 to 30 of about 5,585,911 (239)

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

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

Computational Fluid Dynamics Based Optimal Design of Vertical Axis Marine Current Turbines [PDF]

open access: yes, 2013
Marine turbines are being increasingly used to harness kinetic energy of water and convert it into other useful forms of energy. Widespread commercial acceptability of these machines depends upon their efficiency.
Ubbi, Kuldip   +3 more
core   +4 more sources

Advances in reduced order methods for parametric industrial problems in computational fluid dynamics [PDF]

open access: yes, 2018
Reduced order modeling has gained considerable attention in recent decades owing to the advantages offered in reduced computational times and multiple solutions for parametric problems.
Girfoglio, Michele   +7 more
core   +1 more source

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

Insights into Flexible Bioinspired Fins for Unmanned Underwater Vehicle Systems through Deep Learning

open access: yesBiomimetics
The last few decades have led to the rise of research focused on propulsion and control systems for bio-inspired unmanned underwater vehicles (UUVs), which provide more maneuverable alternatives to traditional UUVs in underwater missions. Recent work has
Brian Zhou   +4 more
doaj   +1 more source

Bilinear Form and Two Bäcklund Transformations for the (3+1)-Dimensional Jimbo-Miwa Equation

open access: yesAbstract and Applied Analysis, 2015
With Bell polynomials and symbolic computation, this paper investigates the (3+1)-dimensional Jimbo-Miwa equation, which is one of the equations in the Kadomtsev-Petviashvili hierarchy of integrable systems.
He Li, Yi-Tian Gao
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

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

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