Improvement in techniques to determine extensional rheology from entrance flows: Computational and experimental analysis

Zatloukal, Martin; Vlček, Jiří; Tzoganakis, Costas; Sáha, Petr

Název:

Autor:

Zatloukal, Martin; Vlček, Jiří; Tzoganakis, Costas; Sáha, Petr

Typ dokumentu:

Recenzovaný odborný článek (English)

Zdrojový dok.:

Journal of Non-Newtonian Fluid Mechanics. 2002, vol. 107, issue 1-3, p. 13-37

ISSN:

0377-0257 (Sherpa/RoMEO, JCR)

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DOI:

https://doi.org/10.1016/S0377-0257(02)00111-8

Abstrakt:

Flow through an abrupt contraction has been analyzed experimentally and theoretically through FEM simulations using the modified White-Metzner model. The results show that the 'entrance viscosity' (entrance pressure drop divided by the shear rate) strongly depends on the shape of the steady extensional viscosity, the L/D ratio of the orifice die, and it can be properly described by the newly proposed model.

Plný text:

https://www.sciencedirect.com/science/article/pii/S0377025702001118

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Citace článku v časopise:
ZATLOUKAL, Martin, Jiří VLČEK, Costas TZOGANAKIS a Petr SÁHA. Improvement in techniques to determine extensional rheology from entrance flows: Computational and experimental analysis. Journal of Non-Newtonian Fluid Mechanics [online]. 2002, vol. 107, iss. 1-3, s. 13-37. [cit. 2025-10-31]. ISSN 0377-0257. Dostupné z: https://www.sciencedirect.com/science/article/pii/S0377025702001118.

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