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Description
  • Počet parametrů vystupujících v klasických empirických konstitutivních rovnicích popisujících viskozitní chování nenewtonských kapalin se mění v rozsahu od dvou (mocninový či Binghamův model) do pěti (např. Carreauův- Yasudaův model). S nástupem nových, reologicky složitějších, materiálů vykazujícíh nemonotónní chování tokových křivek je tento rozsah (2-5) již déle neudržitelný a další dodatečné parametry se jeví jako nezbytné. Tento příspěvek sumarizuje základní klasické monotónní modely a analyzuje nemonotónní průběhy pro případy: smyková viskozita vs. rychlost smykové deformace a smyková viskozita vs. smykové napětí. (cs)
  • A number of parameters appearing in the 'classical' empirical constitutive equations (rheological equations of state) describing viscosity behaviour of non-Newtonian fluids usually oscillate between two (power-law or Bingham model) and five (as e.g. Carreau-Yasuda model). With the onset of new rheologically more complex materials exhibiting non-monotonous behaviour of flow curves this range (2-5) is no longer tenable and more additional parameters are required for a proper description of the flow curves. The present contribution summarises basic classical monotonous models, and analyses a non-monotonous problem for the cases: shear viscosity vs. shear rate and shear viscosity vs. shear stress.
  • A number of parameters appearing in the 'classical' empirical constitutive equations (rheological equations of state) describing viscosity behaviour of non-Newtonian fluids usually oscillate between two (power-law or Bingham model) and five (as e.g. Carreau-Yasuda model). With the onset of new rheologically more complex materials exhibiting non-monotonous behaviour of flow curves this range (2-5) is no longer tenable and more additional parameters are required for a proper description of the flow curves. The present contribution summarises basic classical monotonous models, and analyses a non-monotonous problem for the cases: shear viscosity vs. shear rate and shear viscosity vs. shear stress. (en)
Title
  • Empirical constitutive equations – from monotonous to non-monotonous flow curves
  • Empirical constitutive equations – from monotonous to non-monotonous flow curves (en)
  • Empirické konstitutivní rovnice - od monotónních k nemonotónním křivkám (cs)
skos:prefLabel
  • Empirical constitutive equations – from monotonous to non-monotonous flow curves
  • Empirical constitutive equations – from monotonous to non-monotonous flow curves (en)
  • Empirické konstitutivní rovnice - od monotónních k nemonotónním křivkám (cs)
skos:notation
  • RIV/67985874:_____/08:00319375!RIV09-AV0-67985874
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA103/06/1033), Z(AV0Z20600510)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
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http://linked.open...titaPredkladatele
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  • 366085
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  • RIV/67985874:_____/08:00319375
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Empirical constitutive equation (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [B6F0C1EC38CC]
http://linked.open...v/mistoKonaniAkce
  • Rhodos
http://linked.open...i/riv/mistoVydani
  • Rhodos
http://linked.open...i/riv/nazevZdroje
  • New Aspects of Heat Transfer, Thermal Engineering and Environment
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Filip, Petr
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
http://linked.open...n/vavai/riv/zamer
number of pages
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  • WSEAS Press
https://schema.org/isbn
  • 978-960-6766-97-8
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