Drag on a plate perpendicular to the flow of an elasto-viscoplastic fluid

Author:

Jossic Laurent,Ouattara Zemihori,Gueye Moctar,Dufour Frédéric,Magnin Albert

Abstract

AbstractThe flow with no inertia of an elasto-viscoplastic fluid around a plate perpendicular to the flow direction was considered. Firstly, experiments were performed with a model yield stress fluid, an aqueous Carbopol gel. The viscoelastic behavior of the fluid is identified by steady and transient rheological measurements. The drag force on the plate has been measured as a function of the plate velocity in steady state and in relaxation after stopping the movement. The role of the initial stress state in the fluid was highlighted. Secondly, numerical simulations were carried out using the finite element method with Lagrangian integration points. As a first approach, the elasto-viscoplastic behaviour of the gel has been simplified by a constitutive equation based on the Maxwell and Herschel-Bulkley models. The solid–liquid transition is defined by the von Mises criterion. The comparison between experimental and numerical data are quite satisfactory.

Publisher

Springer Science and Business Media LLC

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3