کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
823538 1469650 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Comparative study of correction methods of wall slip effects for CMC solutions
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Comparative study of correction methods of wall slip effects for CMC solutions
چکیده انگلیسی

In this paper, an experimental analysis has been carried out in order to characterize the rheological properties of non-Newtonian CMC fluids (carboxymethylcellulose CMC solutions). Two solutions at low and medium concentrations, respectively 0.5 and l.5%, have been tested. A comparative study of the three methods proposed by Mooney, Wiegreffe, and Geiger has been carried out. It was found that the two solutions follow the rheological power-law model of Ostwald/de Waele-type for the studied experimental range. The diameter of the flow channel influences the rheological behavior of the CMC solution and highlights the wall slip effects. For a 0.5% concentration, the methods of Mooney and Wiegreffe could not be used as they gave results that could not be explained physically. However, for a 1.5% concentration, the three of them gave satisfactory results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Comptes Rendus Mécanique - Volume 343, Issues 5–6, May–June 2015, Pages 322–330
نویسندگان
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