Comptes Rendus
Comparative study of correction methods of wall slip effects for CMC solutions
Comptes Rendus. Mécanique, Volume 343 (2015) no. 5-6, pp. 322-330.

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.

Received:
Accepted:
Published online:
DOI: 10.1016/j.crme.2015.02.006
Keywords: Rheology, Experimental studies, Non-Newtonian fluids, Methods of quantification of wall slip, Carboxymethylcellulose (CMC)

Hacina Abchiche 1; Mounir Mellal 2; Ammar Bensakhria 2; Mohamed Trari 3

1 Université des sciences et de la technologie Houari-Boumediene (USTHB), Faculté de génie mécanique et de génie des procédés, Laboratoire des phénomènes de transfert, Bab-Ezzouar, 16111 Alger, Algeria
2 Université de technologie de Compiègne (UTC), 60205 Compiègne cedex, France
3 Université des sciences et de la technologie Houari-Boumediene (USTHB), Faculté de chimie, Bab-Ezzouar, 16111 Alger, Algeria
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Hacina Abchiche; Mounir Mellal; Ammar Bensakhria; Mohamed Trari. Comparative study of correction methods of wall slip effects for CMC solutions. Comptes Rendus. Mécanique, Volume 343 (2015) no. 5-6, pp. 322-330. doi : 10.1016/j.crme.2015.02.006. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2015.02.006/

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