Modeling gelled fluid flow with thixotropy and Theological hysteresis effects

Changjin Yoon; Stephen D. Heister; Osvaldo H. Campanella

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Modeling gelled fluid flow with thixotropy and Theological hysteresis effects

机译：具有触变性和神学滞后效应的胶凝流体流动模型

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摘要

A new model has been developed for describing the rheology of thixotropic fluids. The model accounts for hysteresis effects when the fluid goes through multiple shearing events. To demonstrate the model capability, a series of unsteady, three-dimensional simulations are presented for flow through a plain orifice passage. The thixotropic liquid simulation showed the behavior generally bounded by Newtonian and shear-thinning liquids limits. For high Reynolds number injection conditions, quasi-periodic behavior is noted as in prior studies with Newtonian and shear-thinning fluids. The effect of fluid rheology and response rates is also parametrically considered to demonstrate the role of the model parameters.

机译：已经开发出一种用于描述触变流体流变性的新模型。当流体经历多次剪切事件时，该模型考虑了滞后效应。为了演示模型的功能，提出了一系列不稳定的三维模拟，以模拟流经平口孔道的情况。触变液体模拟显示了通常受牛顿和剪切稀化液体极限限制的行为。对于较高的雷诺数注入条件，在先前的牛顿流体和剪切稀化流体研究中，都注意到了准周期行为。还可以从参数上考虑流体流变学和响应速率的影响，以证明模型参数的作用。

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来源
《Fuel》 |2014年第15期|467-475|共9页
作者
Changjin Yoon; Stephen D. Heister; Osvaldo H. Campanella;
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作者单位

Purdue University, West Lafayette, IN 47907, United States;

Purdue University, West Lafayette, IN 47907, United States;

Purdue University, West Lafayette, IN 47907, United States;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Gel; Thixotropy; Hysteresis;

机译：凝胶;触变性磁滞现象;

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Modeling gelled fluid flow with thixotropy and Theological hysteresis effects

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