Results 51 to 60 of about 2,480 (215)

Withdrawal and drainage of thin film flow of a generalized Oldroyd-B fluid on non-isothermal cylindrical surfaces

open access: yesAIP Advances, 2015
This investigation deals with analytical solutions of thin film flow for withdrawal and drainage of an incompressible generalized Oldroyd-B fluid on a vertical cylinder under the influence of non-isothermal effects.
Saif Ullah, Arshad Ullah, Mohsan Iqbal
doaj   +1 more source

Exact solutions for the unsteady rotational flow of a generalized second grade fluid through a circular cylinder

open access: yesNonlinear Analysis, 2010
Here the velocity field and the associated tangential stress corresponding to the rotational flow of a generalized second grade fluid within an infinite circular cylinder are determined by means of the Laplace and finite Hankel transforms.
M. Kamran, M. Imran, M. Athar
doaj   +1 more source

Second‐Law Analysis of Mini/Micro Counterflow Parallel‐Plate Heat Exchangers: Optimizing Effectiveness by Minimizing Wall Entropy Production

open access: yesHeat Transfer, EarlyView.
ABSTRACT We present an analytical and numerical study of the entropy production rate in laminar counterflow parallel‐plate heat exchangers, aiming to investigate the interplay between multidimensional wall conduction, entropy production, and the optimum wall conductivity that leads to maximum effectiveness.
Santiago E. Ibáñez   +2 more
wiley   +1 more source

Viscous Dissipation Effect in the Free Convection of Non-Newtonian Fluid with Heat Generation or Absorption Effect on the Vertical Wavy Surface

open access: yesJournal of Applied Mathematics, 2021
The present article analyzes the effect of viscous dissipations on natural convection heat transfer. The power law model for non-Newtonian fluid with heat generation or absorption effect along a sinusoidal wavy surface with isothermal boundary condition ...
Mehdi Moslemi, Kourosh Javaherdeh
doaj   +1 more source

Managerial Efficiency and Reverse‐Flow Complexity in a Circular Economy

open access: yesJournal of Operations Management, EarlyView.
ABSTRACT A Circular Economy (CE) is a system in which products are collected after customers have used them, remanufactured, and then put back into circulation for further use. This reduces the need for virgin materials to manufacture new units and wastage from used units.
Sergey Naumov   +2 more
wiley   +1 more source

Generalized Beltrami flows and other closed-form solutions of an unsteady viscoelastic fluid

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2002
We study flows of an unsteady non-Newtonian fluid by assuming the form of the vorticity a priori. The two forms that have been considered are ∇2ψ=F(t)ψ+G(t), which is known as the generalized Beltrami flow and ∇2ψ=f(t)ψ+g(t)y.
F. Labropulu
doaj   +1 more source

Mechanically Tunable DNA Hydrogels as Prospective Biosensing Modules

open access: yesMacromolecular Rapid Communications, EarlyView.
Sequence‐programmable and thermally responsive DNA hydrogels enable highly sensitive mechanical biosensing through the exchange of linker strands using a toehold strand displacement mechanism. This new type of mechanical biosensor has in‐built sequence‐specificity and dose‐sensitivity, obviating the need for elaborate DNA sequencing and enabling rapid ...
Asya E. Can   +4 more
wiley   +1 more source

Two-phase flow of MHD Jeffrey fluid with the suspension of tiny metallic particles incorporated with viscous dissipation and Porous Medium

open access: yesAdvances in Mechanical Engineering, 2021
Magnetohydrodynamic (MHD) flow of fluids with porous media has several applications in medical and industrial fields, including hyperthermia, wound treatment using magnetic field, cancer treatment, heat exchangers, catalytic reactions and distillation ...
Hu Ge-JiLe   +5 more
doaj   +1 more source

Numerical data generation for building machine learning models for permeability estimation of fibrous structures

open access: yesPolymer Composites, EarlyView.
Data‐driven emulators can estimate the permeability in less than 10% of the time compared to numerical permeability determination. Abstract The challenge of developing effective multiscale flow simulation methods is to take into account all relevant physical effects from fiber to component level, but remain manageable in terms of computational effort ...
Tim Schmidt   +5 more
wiley   +1 more source

Analytical solutions of couple stress fluid flows with slip boundary conditions

open access: yesAlexandria Engineering Journal, 2014
In the present article, the exact solutions for fundamental flows namely Couette, Poiseuille and generalized Couette flows of an incompressible couple stress fluid between parallel plates are obtained using slip boundary conditions. The effect of various
Devakar M., Sreenivasu D., Shankar B.
doaj   +1 more source

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