Results 81 to 90 of about 3,244,761 (335)

About the new version of maximum principle of Navier-Stokes equations

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2015
The below shows the links of the extreme values of the velocity vector, the kinetic energy density and pressure of nonlinear Navier-Stokes equations.
A.Sh. Akysh
doaj  

Two-Level Iteration Penalty Methods for the Navier-Stokes Equations with Friction Boundary Conditions

open access: yesAbstract and Applied Analysis, 2013
This paper presents two-level iteration penalty finite element methods to approximate the solution of the Navier-Stokes equations with friction boundary conditions.
Yuan Li, Rong An
doaj   +1 more source

Neural Topology Optimization Via Active Learning for Efficient Channel Design in Turbulent Mass Transfer

open access: yesAdvanced Science, EarlyView.
This study introduces a neural operator‐assisted topology optimization framework for designing fluidic channel structures in mass transfer processes. By combining machine learning, gradient‐based optimization, and active data augmentation, the method enables high‐fidelity, efficient design.
Chenhui Kou   +6 more
wiley   +1 more source

The Asymptotic Stability of the Generalized 3D Navier-Stokes Equations

open access: yesJournal of Applied Mathematics, 2013
We study the stability issue of the generalized 3D Navier-Stokes equations. It is shown that if the weak solution u of the Navier-Stokes equations lies in the regular class ∇u∈Lp(0,∞;Bq,∞0(ℝ3)), (2α/p)+(3/q)=2α ...
Wen-Juan Wang, Yan Jia
doaj   +1 more source

Computational and AI‐Driven Design of Hydrogels for Bioelectronic Applications

open access: yesAdvanced Electronic Materials, EarlyView.
This review highlights the role of AI in advancing hydrogel design for bioelectronics, exploring natural, and synthetic gels tailored for applications like wound healing, biosensing, and tissue engineering. It emphasizes the synergy between hydrogels, electronics, and AI in creating responsive, multifunctional systems, showcasing recent innovations ...
Rebekah Finster   +2 more
wiley   +1 more source

Decoupling Membrane Electrode Assembly Materials Complexity from Fuel Cell Performance through Image‐Based Multiphase and Multiphysics Modelling

open access: yesAdvanced Energy Materials, EarlyView.
A high‐resolution image‐based multiphase and multi‐physics modelling framework is developed to decouple structural changes in the membrane electrode assemblies of high‐temperature proton exchange membrane fuel cells. These changes are then digitally combined to show how morphological defects such as membrane pores, catalyst cracks, and phase migration ...
Jianuo Chen   +13 more
wiley   +1 more source

Analysis of the Navigation of Magnetic Microrobots through Cerebral Bifurcations for Targeted Drug Delivery

open access: yesAdvanced Intelligent Systems, EarlyView.
The motion of magnetic microrobots through cerebral bifurcations depends on various parameters such as the microrobots size, the blood velocity, and the imposed magnetic field gradients, among others. This work presents an in‐depth analysis of the effects of these parameters and equations predicting the required magnetic gradients based on the ...
Pedro G. Alves   +10 more
wiley   +1 more source

Stabilization of Navier-Stokes Equations

open access: yesBoletim da Sociedade Paranaense de Matemática, 2008
We survey here a few recent stabilization results for Navier-Stokes ...
Viorel Barbu
doaj  

A Magnetically Transformable Twisting Millirobot for Cargo Delivery at Low Reynolds Number

open access: yesAdvanced Intelligent Systems, EarlyView.
Herein, a soft millirobot, TwistBot, that transforms from a flat shape to a helical shape to propel in fluids at low Reynolds number is reported. Its geometry is optimized by numerical simulation and validated by experiments to effectively propel and deliver solid cargos.
Moonkwang Jeong   +3 more
wiley   +1 more source

Governing equations of fluid mechanics in physical curvilinear coordinate system

open access: yesElectronic Journal of Differential Equations, 1998
This paper presents the development of unsteady three-dimensional incompressible Navier-Stokes and Reynolds-averaged Navier-Stokes equations in an unsteady physical curvilinear coordinate system. It is demonstrated that the numerical simulations based on
Swungho Lee, Bharat K. Soni
doaj  

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