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An upper bound on the steady flow velocity of solvent-free nanofluids

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An upper bound on the steady flow velocity of solvent-free nanofluids
The rheological properties and limited flow velocities of solvent-free nanoflu-ids are crucial for their technologically significant applications.In particular,the flow in a solvent-free nanofluid system is steady only when the flow velocity is lower than a critical value.In this paper,we establish a rigid-flexible dynamic model to investigate the existence of the upper bound on the steady flow velocities for three solvent-free nanofluid systems.Then,the effects of the structural parameters on the upper bound on the steady flow velocities are examined with the proposed structure-preserving method.It is found that each of these solvent-free nanofluid systems has an upper bound on the steady flow velocity,which exhibits distinct dependence on their structural parameters,such as the graft density of branch chains and the size of the cores.In addition,among the three types of solvent-free nanofluids,the magnetic solvent-free nanofluid poses the largest up-per bound on the steady flow velocity,demonstrating that it is a better choice when a large flow velocity is required in real applications.

solvent-free nanofluidstructure-preserving methodflexible hub-beam modelsteady flow velocity

Weipeng HU、Zhengqi HAN、Xiqiao FENG、Yaping ZHENG、Zichen DENG

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School of Civil Engineering and Architecture,Xi'an University of Technology,Xi'an 710048,China

State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China,Xi'an University of Technology,Xi'an 710048,China

Department of Engineering Mechanics,Tsinghua University,Beijing 100084,China

School of Science,Northwestern Polytechnical University,Xi'an 710072,China

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solvent-free nanofluid structure-preserving method flexible hub-beam model steady flow velocity

2024

应用数学和力学(英文版)
上海大学

应用数学和力学(英文版)

影响因子:0.294
ISSN:0253-4827
年,卷(期):2024.45(12)