CORRELATION OF CAPILLARY ENTRANCE PRESSURE DROPS WITH NORMAL STRESS DATA

被引:59
作者
LANIEVE, HL
BOGUE, DC
机构
[1] Department of Chemical and Metallurgical Engineering, University of Tennessee, Knoxville, Tennessee
[2] Celanese Research Company, Summit, New Jersey
关键词
D O I
10.1002/app.1968.070120211
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The pressure loss at the entrance of a capillary tube was studied as a means of characterizing viscoelastic fluids. Measurements of four polymer solutions were made and correlated with an equation of the form (Formula Presented.) where D is the shear rate and where Hch and λch are a characteristic stress and a characteristic time, respectively, determined independently from viscosity and normal stress measurements. Various theoretical analyses of capillary entrance flow are also compared. Copyright © 1968 John Wiley & Sons, Inc.
引用
收藏
页码:353 / +
页数:1
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