OLDROYD-B

作品数:33被引量:49H指数:4
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相关领域:理学更多>>
相关作者:欧阳洁张磊李爱芬孙海姚军更多>>
相关机构:浙江大学北京建筑大学中国科学技术大学西北工业大学更多>>
相关期刊:《Computer Modeling in Engineering & Sciences》《Propulsion and Power Research》《Communications in Theoretical Physics》《现代制造工程》更多>>
相关基金:国家自然科学基金国家重点基础研究发展计划中国博士后科学基金国家科技重大专项更多>>
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环面上不可压缩Oldroyd-B模型的全局指数衰减和无黏极限
《数学学报(中文版)》2025年第1期30-44,共15页陈玉莹 潘星宏 
国家自然科学基金资助项目(11801268,12031006,12471222);中央高校基本科研业务费(NS2023039)。
本文首先证明了环面上三维不可压缩Oldroyd-B模型小初值解析解的全局存在性和指数衰减.我们能够得到一个无黏性的先验估计.基于这个先验估计,OldroydB系统的无黏性极限能够被得到.这里我们指出,此系统的非线性二次项的导数比线性部分的...
关键词:全局解析解 无黏性极限 OLDROYD-B 导数损失 
Oldroyd-B黏弹性液滴撞击弯曲壁面的数值研究
《力学学报》2024年第5期1342-1355,共14页李国辉 吴小雨 王娴 
空天飞行空气动力科学与技术全国重点实验室基金资助项目(SKLA-2022-KFKT-002)。
液滴撞击弯曲壁面现象广泛存在于冶金、化工和航空航天等领域,在某些场景下,液滴混入高分子聚合物后会表现黏弹性特性,为了进一步认识液滴黏弹性对撞击弯曲壁面的影响,对黏弹性液滴撞击弯曲壁面的过程进行数值模拟研究.研究基于相场方...
关键词:Oldroyd-B流体 液滴撞击 相场方法 LBM 弯曲壁面 
Oldroyd-B黏弹性液滴弹跳行为的改进SPH模拟
《计算力学学报》2024年第2期359-364,共6页许晓阳 周亚丽 
国家自然科学基金(12071367)资助项目.
基于光滑粒子流体动力学SPH(Smoothed Particle Hydrodynamics)方法对Oldroyd-B黏弹性液滴撞击固壁面产生的弹跳行为进行了模拟与分析。首先,为了解决SPH模拟黏弹性自由表面流出现的张力不稳定性问题,联合粒子迁移技术提出了一种改进SP...
关键词:光滑粒子流体动力学 Oldroyd-B黏弹性液滴 张力不稳定 粒子迁移技术 弹跳行为 
不可压缩Oldroyd-B系统的粘性消失极限
《五邑大学学报(自然科学版)》2023年第4期1-6,共6页郭冬仪 黄金锐 
国家自然科学基金面上项目(11971357);广东省自然科学基金面上项目(2023A151501010213)。
本文研究了带有阻尼项的一般不可压缩Oldroyd-B系统的三维Cauchy问题,并给出了粘性消失极限(单侧粘性)强解的收敛速度.
关键词:Oldroyd-B系统 不可压缩 强解 粘性消失极限 收敛速度 
Enhanced Constitutive Theories for Classical Thermoviscoelastic Polymeric Fluids
《Applied Mathematics》2022年第11期917-947,共31页Karan S. Surana Thomas J. Ezell 
This paper presents ordered rate nonlinear constitutive theories for thermoviscoelastic fluids based on Classical Continuum Mechanics (CCM). We refer to these fluids as classical thermoviscoelastic polymeric fluids. T...
关键词:Polymeric Fluids MAXWELL OLDROYD-B Giesekus Mathematical Models Nonlinear Rate Constitutive Theories Representation Theorem INTEGRITY Generators INVARIANTS 
Numerical Simulation for Bioconvection of Unsteady Stagnation Point Flow of Oldroyd-B Nanofluid with Activation Energy and Temperature-Based Thermal Conductivity Past a Stretching Disk
《Computer Modeling in Engineering & Sciences》2022年第1期233-254,共22页Muhammad Sami Rashad Haihu Liu Shan Ali Khan 
the National Natural Science Foundation of China(Nos.51876170,12072257);the Natural Science Basic Research Plan in Shaanxi Province of China(No.2019JM-343);the National Key Project(GJXM92579).
A mathematical modeling is explored to scrutinize the unsteady stagnation point flow of Oldroyd-B nanofluid under the thermal conductivity and solutal diffusivity with bioconvection mechanism.Impacts of Joule heating ...
关键词:Oldroyd-B nanofluid thermal conductivity solutal diffusivity conductivity bioconvective microorganisms shooting algorithm 
The Efficient Finite Element Methods for Time-Fractional Oldroyd-B Fluid Model Involving Two Caputo Derivatives被引量:2
《Computer Modeling in Engineering & Sciences》2020年第10期173-195,共23页An Chen 
The work is supported by the Guangxi Natural Science Foundation[Grant Numbers 2018GXNSFBA281020,2018GXNSFAA138121];the Doctoral Starting up Foundation of Guilin University of Technology[Grant Number GLUTQD2016044].
In this paper,we consider the numerical schemes for a timefractionalOldroyd-B fluidmodel involving the Caputo derivative.We propose two efficient finite element methods by applying the convolution quadrature in time g...
关键词:Oldroyd-B fluid model caputo derivative finite element method convolution quadrature error estimate data regularity 
Rotational flow of Oldroyd-B nanofluid subject to Cattaneo-Christov double diffusion theory被引量:2
《Applied Mathematics and Mechanics(English Edition)》2020年第7期1083-1094,共12页A.HAFEEZ M.KHAN A.AHMED J.AHMED 
A nanofluid is composed of a base fluid component and nanoparticles, in which the nanoparticles are dispersed in the base fluid. The addition of nanoparticles into a base fluid can remarkably improve the thermal condu...
关键词:Oldroyd-B nanofluid rotating disk magnetohydrodynamic(MHD) Cattaneo-Christov theory analytical solution 
An IB Method for Non-Newtonian-Fluid Flexible-Structure Interactions in Three-Dimensions
《Computer Modeling in Engineering & Sciences》2019年第4期125-143,共19页Luoding Zhu 
The work is supported by the US National Science Foundation(NSF)through the research grant DMS-1522554;We thank the unknown Reviewers for their helpful suggestions and comments which have helped us.
Problems involving fluid flexible-structure interactions(FFSI)are ubiquitous in engineering and sciences.Peskin’s immersed boundary(IB)method is the first framework for modeling and simulation of such problems.This p...
关键词:FLUID flexible-structure interaction immersed boundary method lattice Boltzmann power-law OLDROYD-B FENE-P 
Effects of the Reynolds and Weissenberg’s Numbers on the Stability of Linear Pipe Flow of Viscous Fluid
《Modern Mechanical Engineering》2018年第4期264-277,共14页Ibrahima Kama Mamadou Lamine Sow Kodjo Kpode Cheikh Mbow 
A Fourier-Chebyshev Petrov-Galerkin spectral method is described for high accuracy computation of linearized dynamics for flow in a circular pipe. The code used here is based on solenoidal velocity variables and is wr...
关键词:Viscoelastic Fluids OLDROYD-B Model LINEAR Stability PETROV-GALERKIN Generalized EIGENVALUE Problem 
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