旋转圆柱体和磁场对纳米流体填充多孔腔内固体颗粒扩散的影响

IF 3.1 3区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
A. Aly, E. M. Mohamed, H. Oztop, Noura Alsedais
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引用次数: 4

摘要

本文研究了磁场和圆柱体旋转对纳米流体填充方形腔内固相扩散的影响。非达西多孔介质的两波状层位于空腔的垂直两侧。采用不可压缩光滑颗粒流体力学(ISPH)方法进行了固相与纳米流体和多孔介质层的共混过程。最初,固相被放置在一个圆柱体中,圆柱体中有两个打开的门。浮力的影响比(N =−2:2),哈特曼数(公顷= 0:100),转动频率(ω= 1:10),达西参数(D = 10−2:10−5),瑞利数(R = 10 3: 10 6),纳米颗粒参数(φ= 0:0.06)和振幅波状多孔层(Α= 0.05:0.15)/质量传输热量的轮廓。结果表明:除反流模式(N < 0)下扩散外,固相的扩散始终是向上的;较低的瑞利数减少了固相扩散。达西参数的降低降低了纳米流体的速度和多孔层中的固相扩散。当D从10−3降低到10−5时,在N =−2时,流线| ψ | max的最大值降低了13.19%,在N = 0时降低了46.75%,在N = 2时降低了74.75%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Rotating cylinder and magnetic field on solid particles diffusion inside a porous cavity filled with a nanofluid
This study deals with the roles of a magnetic field and circular rotation of a circular cylinder on the dissemination of solid phase within a nanofluid-filled square cavity. Two wavy layers of the non-Darcy porous media are situated on the vertical sides of a cavity. An incompressible smoothed particle hydrodynamics (ISPH) method was endorsed to carry out the blending process concerning solid phase into nanofluid and porous media layers. Initially, the solid phase is stationed in a circular cylinder containing two open gates. Implications of a buoyancy ratio (N = −2: 2), Hartmann number (Ha = 0: 100), rotational frequency ( ω = 1 : 10 ) , Darcy parameter ( D a = 10 − 2 : 10 − 5 ) , Rayleigh number ( R a = 10 3 : 10 6 ) , nanoparticles parameter ( φ = 0 : 0.06 ) , and amplitude of wavy porous layers ( Α = 0.05 : 0.15 ) on the lineaments of heat/mass transport have been carried out. The results revealed that the diffusion of the solid phase is permanently moving toward upward except at opposing flow mode ( N < 0 ) toward downward. The lower Rayleigh number reduces the solid-phase diffusions. A reduction in a Darcy parameter lessens the nanofluid speed and solid-phase diffusions in the porous layers. A reduction in D a from 10 − 3 to 10 − 5 diminishes the maximum of streamlines | ψ | max by 13.19% at N = − 2 , by 46.75% at N = 0 , and by 74.75% at N = 2 .
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来源期刊
Nanomaterials and Nanotechnology
Nanomaterials and Nanotechnology NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY
CiteScore
7.20
自引率
21.60%
发文量
13
审稿时长
15 weeks
期刊介绍: Nanomaterials and Nanotechnology is a JCR ranked, peer-reviewed open access journal addressed to a cross-disciplinary readership including scientists, researchers and professionals in both academia and industry with an interest in nanoscience and nanotechnology. The scope comprises (but is not limited to) the fundamental aspects and applications of nanoscience and nanotechnology
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