Results 181 to 190 of about 2,243,254 (381)

Dynamics of Bio‐Convection Two‐Phase Nanofluid Flow in an Entropy‐Optimized Non‐Newtonian Model With Nonlinear Thermal Radiation and Electromagnetic Effects

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT The study of nanofluids has attracted significant attention due to their superior thermophysical properties, making them ideal for thermal transport in engineering and biomedical applications. Motivated by these capabilities, this study develops a novel three‐dimensional mathematical model for electrically conducting Sutterby nanofluids ...
A. M. Obalalu   +4 more
wiley   +1 more source

Numerical Investigation of Turbulent Mixed Convection Between Coaxial Cylinders and the Inner Rotating Cylinder With Axial Flow

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT The turbulent flow between coaxial cylinders, particularly when the inner cylinder is rotating, exhibits complex hydrodynamic and heat transfer behaviors critical for various engineering applications. Although many previous studies have simplified these systems with idealized assumptions, real‐world scenarios involve mixed convection and ...
Tohid Adibi   +5 more
wiley   +1 more source

Fabrication of ZnO Nanoparticles Using the Top‐Down Method and Its Effect on the Rheological Properties of Gelatin‐Based Bionanocomposite Solutions and Films

open access: yesFood Bioengineering, EarlyView.
ZnO nanoparticles were fabricated from bulk ZnO via calcination, capping, and ultrasonication, then incorporated into gelatin to form bionanocomposite films with improved water vapor barrier properties. Gelatin solutions with or without ZnO‐NPs and glycerol exhibited shear‐thickening and dilatant behavior. ABSTRACT Gelatin is a thermoplastic biopolymer
Abdurrohman Zuhdi   +3 more
wiley   +1 more source

Gradient Representations Of The Newtonian Fluid

open access: yes, 2018
We propose a model of gradient representations for study of the Newtonian fluid. In particular, we consider the possibility of smooth Navier-Stokes solutions defined by a particular solution \(\psi\). This make it possible for us to research the Newtonian fluid representation described by the Navier-Stokes equations.
openaire   +1 more source

Space‐Time Modeling and Numerical Simulations of Non‐Newtonian Fluids Using Internal Variables

open access: yesInternational Journal for Numerical Methods in Fluids, EarlyView.
Based on Hamilton's principle, the study focuses on a novel strategy for the modeling of non‐Newtonian fluids with the help of internal variables. Here, the viscosity evolves locally in space and time. Three configurations are numerically implemented, namely channel flow, a benchmark, and a lid‐driven cavity.
Philipp Junker, Thomas Wick
wiley   +1 more source

A Geometric Multigrid Solver for the Incompressible Navier–Stokes Equations Using Discretely Divergence‐Free Finite Elements in 3D

open access: yesInternational Journal for Numerical Methods in Fluids, EarlyView.
In this paper, we consider the concept of discretely divergence‐free finite elements (DDFFE) based on the Rannacher–Turek finite element pair to efficiently solve the three‐dimensional incompressible Navier–Stokes equations. For this purpose, we first define a spanning set of DDFFE functions and then characterize a set of basis functions for arbitrary ...
Christoph Lohmann
wiley   +1 more source

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