Results 71 to 80 of about 2,052 (184)

Liquid Crystal Polymers as Intrinsically Magnetic and Programmable Soft Materials for Microrobotics

open access: yesSmall, Volume 22, Issue 42, 27 July 2026.
Liquid crystal polymers (LCPs) are proposed as intrinsically magnetic, programmable, soft materials for microrobotics. Magnetic torque‐driven manipulation of LCP microobjects is achieved and characterized in terms of the step‐out frequency, reaching ∼0.6 Hz in a ∼250 mT magnetic field. The orientation of LCP microobjects in the magnetic field and their
Alexandra Gruzdenko   +5 more
wiley   +1 more source

Applications of magnetic field and porous medium for Jeffrey (non-Newtonian) fluid by using Laplace simulations

open access: yesJournal of Radiation Research and Applied Sciences
The flow through parallel plates offers novel applications in microfluidic devices, lubrication systems, nuclear reactors, chemical and biological systems etc.
Maria Shaheen   +8 more
doaj   +1 more source

Parametric Study of Turbulent Couette Flow over Wavy Surfaces Using RANS Simulation: Effects of Aspect-Ratio, Wave-Slope and Reynolds Number

open access: yesFluids, 2020
A turbulent Couette flow over a wavy surface is subject to a detailed parametric study in which three parameters—Aspect Ratio, Wave Slope and Reynolds number—are independently varied over an order of magnitude to investigate their influence on the flow ...
Akshay Sherikar, Peter J. Disimile
doaj   +1 more source

Scalable Manufacturing of Roll‐to‐Roll Slot‐Die Coated Perovskite Solar Cells

open access: yesAdvanced Science, Volume 13, Issue 33, 15 June 2026.
Roll‐to‐roll (R2R) slot‐die coating is emerging as a scalable pathway for perovskite solar cells. This mini‐review summarizes advances in ink design, drying control, and electrode integration that enable high‐efficiency flexible devices and modules. Challenges in throughput, stability, and sustainable processing are outlined, guiding the translation of
Farshad Jafarzadeh   +5 more
wiley   +1 more source

Couette flow of hot viscous gas

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2020
A new exact solution is found for the equations of motion of a viscous gas for a stationary shear flow of hot (800–1500 K) gas between two parallel plates moving at different speeds (an analog of the incompressible Couette flow).
Aleksandr Nickolaevich Khorin   +1 more
doaj   +1 more source

Entropy Optimization in Transient Hydromagnetics Laminar Flow Through a Vertical Stream With Emission of Thermal Energy and Temperature‐Dependent Properties Governed by Newtonian Cooling

open access: yesEngineering Reports, Volume 8, Issue 6, June 2026.
This study investigates entropy production in transient hydromagnetic laminar flow through a vertical channel embedded in a porous channel with temperature‐dependent properties under Newtonian cooling. Increasing magnetic field strength reduces velocity, temperature, and entropy production, enhancing thermodynamic performance.
Odeli J. Kigodi   +4 more
wiley   +1 more source

Experimental research of the couette flow with cross flow

open access: yesEPJ Web of Conferences, 2012
When a solid cylinder is rotating inside a hollow cylinder, a characteristic fluid flow occurs inside the gap between the two cylinders, caused by the adhesion of the fluid at the walls. This flow problem is widely known as the Couette-flow.
Schmidt Marcus   +2 more
doaj   +1 more source

Instability of three dimensional electrically conducting fluid of magnetohydrodynamics Couette flow

open access: yesAIP Advances, 2019
In this work, we consider a disturbed electrically conductive fluid between two parallel planes and study the stability of the fluid after applying a uniform magnetic field on it.
Zakir Hussain   +3 more
doaj   +1 more source

Turbulence Modeling of Torsional Couette Flows

open access: yesInternational Journal of Rotating Machinery, 2008
The present study considers the numerical modeling of the turbulent flow inside a rotor-stator cavity subjected or not to a superimposed throughflow.
Sofia Haddadi, Sébastien Poncet
doaj   +1 more source

On Rayleigh’s Stability Criterion for Couette Flow

open access: yesZeitschrift für Naturforschung A, 1993
Abstract The stability problem of a stationary circular flow of an ideal fluid between two coaxial cylinders is considered. It is shown that Rayleigh's circulation criterion is necessary and sufficient for the total kinetic energy of an axisymmetric disturbance to be bounded in time.
openaire   +3 more sources

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