Flow characteristics of waxy crude oils in laboratory experimental loops

被引：19

作者：

Farina, A ^{[1
]}

Fasano, A ^{[1
]}

机构：

[1] UNIV FLORENCE, DIPARTIMENTO MATEMAT U DINI, I-50134 FLORENCE, ITALY

来源：

MATHEMATICAL AND COMPUTER MODELLING | 1997年 / 25卷 / 05期

关键词：

waxy crude oils; Bingham fluid; free boundary problem; quasisteady approximation;

D O I：

10.1016/S0895-7177(97)00031-9

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

Waxy crude oils are, at tow temperatures, highly non-Newtonian fluids. The crystallization of wax seems to be the cause of their non-Newtonian behavior. Moreover, the flow properties show time-dependence indicating an evolution of the structure with continued shear (termed ''thixotropy''). In this paper, on the basis of the experimental data, we have developed a physical model which tries to describe the low temperature behavior of waxy crudes in laboratory experimental loops. The correspondent mathematical problem has been investigated performing a quasisteady approximation which we have shown to be physically consistent.

引用

页码：75 / 86

页数：12

共 11 条

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