Počet záznamů: 1  

Empirical Modelling of Nonmonotonous Behaviour of Shear Viscosity

  1. 1.
    SYSNO ASEP0395466
    Druh ASEPJ - Článek v odborném periodiku
    Zařazení RIVJ - Článek v odborném periodiku
    Poddruh JČlánek ve WOS
    NázevEmpirical Modelling of Nonmonotonous Behaviour of Shear Viscosity
    Tvůrce(i) David, Jiří (UH-J)
    Filip, Petr (UH-J) ORCID, RID, SAI
    Kharlamov, Alexander (UH-J)
    Číslo článku658187
    Zdroj.dok.Advances in Materials Science and Engineering. - : Hindawi - ISSN 1687-8434
    Roč. 2013, August (2013)
    Poč.str.4 s.
    Forma vydáníOnline - E
    Jazyk dok.eng - angličtina
    Země vyd.US - Spojené státy americké
    Klíč. slovashear viscosity ; Galindo-rosales ; Carreau-yasuda
    Vědní obor RIVBK - Mechanika tekutin
    CEPGA103/09/2066 GA ČR - Grantová agentura ČR
    Institucionální podporaUH-J - RVO:67985874
    UT WOS000324421300001
    DOI10.1155/2013/658187
    AnotaceAlmost all hitherto proposed empirical models used for characterization of shear viscosity of non-Newtonian liquids describe only its monotonous course. However, the onset of new materials is accompanied by more complicated characteristics of their behaviour including nonmonotonous course of shear viscosity. This feature is reflected not only in an existence of one extreme point (maximum or minimum), but also it can appear in both extreme points; that is, this shear viscosity initially exhibits shear thinning; after attaining a local minimum, it converts to shear thickening, and again after reaching a local maximum, it has a shear-thinning character. It is clear that, for an empirical description of this complex behaviour, a hitherto, used number of parameters (four, five) in classical monotonous models (such as Cross or Carreau-Yasuda) are no longer tenable. If more parameters are applied, there should be given an emphasis on a relatively simple algebraic form of the proposed models, unambiguity of the involved parameters, and their sound interpretation in the whole modelling. This contribution provides an overview of the existing empirical nonmonotonous models and proposes a new 10-parameter model including a demonstration of its flexibility using various experimental data.
    PracovištěÚstav pro hydrodynamiku
    KontaktSoňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003
    Rok sběru2014
    Elektronická adresahttp://www.hindawi.com/journals/amse/2013/658187/
Počet záznamů: 1  

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