Viscoelastic potential flow instability theory of Rivlin-Ericksen electrified fluids of cylindrical interface

IF 13 1区 工程技术 Q1 ENGINEERING, MARINE
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引用次数: 0

Abstract

A linear electrohydrodynamic Kelvin-Helmholtz instability of the interface between two viscoelastic Rivlin-Ericksen fluids enclosed by two concentric horizontal cylinders has been studied via the viscoelastic potential flow theory. The dispersion equation of complex coefficients for asymmetric disturbance has been obtained by using normal mode technique. the stability criteria are analyzed theoretically and illustrated graphically. The imaginary part of growth rate is plotted versus the wave number. The influences of dynamic viscoelastic, uniform velocities, Reynolds number, electric field, dynamic viscosity, density fluids ratio, dielectric constant ratio and inner fluid fraction on the stability of the system are discussed. The study finds its significance in Ocean pipelines to transfer oil or gas such as Eastern Siberia-Pacific Ocean oil pipeline.

圆柱形界面Rivlin-Ericksen带电流体的粘弹性势流不稳定性理论
通过粘弹性势流理论,研究了两个同心水平圆柱体围成的两个粘弹性里夫林-埃里克森流体之间界面的线性电流体力学开尔文-赫尔姆霍兹不稳定性。利用法向模技术得到了非对称扰动的复系数分散方程,并对稳定性标准进行了理论分析和图解。增长率的虚部与波数的关系图。讨论了动态粘弹性、均匀速度、雷诺数、电场、动态粘度、密度流体比、介电常数比和内流体分数对系统稳定性的影响。这项研究对于东西伯利亚-太平洋石油管道等输送石油或天然气的海洋管道具有重要意义。
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来源期刊
CiteScore
11.50
自引率
19.70%
发文量
224
审稿时长
29 days
期刊介绍: The Journal of Ocean Engineering and Science (JOES) serves as a platform for disseminating original research and advancements in the realm of ocean engineering and science. JOES encourages the submission of papers covering various aspects of ocean engineering and science.
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