Excess pressure losses in capillary flows
作者:
W. Kozicki,
P. Q. Kuang,
期刊:
The Canadian Journal of Chemical Engineering
(WILEY Available online 1993)
卷期:
Volume 71,
issue 6
页码: 833-836
ISSN:0008-4034
年代: 1993
DOI:10.1002/cjce.5450710603
出版商: Wiley Subscription Services, Inc., A Wiley Company
关键词: Keywords: excess pressure losses;capillary flows;modified Bagley method;end corrections
数据来源: WILEY
摘要:
AbstractAccurate determinations of excess pressure losses at the entry and exit of capillary flows are essential for rheological characterization of fluids by capillary viscometry. A modification of Bagley's end correction method is presented which accounts for the effects of slight variations in the diameters of the tubes of varying length used in the evaluations. The method was applied to capillary flows of dilute aqueous Polyox solutions using the three homologues WSR 301, Coagulant and FRA of Polyox. The excess pressure losses were found to increase with increase in the apparent shear rate, polymer concentration and tube diameter.
点击下载:
PDF
(337KB)
返 回