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Description
  • V předloženém článku jsou prezentovány numerické výsledky studia nenewtonských efektů stacionárního proudění v kompletním 3D modelu bypassu, jehož nativní artérie je buď koronární, nebo femorální s průměrnými fyziologickými parametry. Dynamická vazkost krve, která je zde modelována jako zobecněná newtonská kapalina, je popsána dvěma známými makroskopickými nenewtonskými modely (Carreauovým-Yasudovým modelem a modifikovaným Crossovým modelem). Pro numerické simulace byl použit vlastní software založený na metodě umělé stlačitelnosti a ?cell-centred? metodě konečných objemů formulované pro nestrukturované hexahedrové výpočtové sítě. (cs)
  • The article presents the numerical investigation of non-Newtonian effects of steady blood flow in complete idealized 3-D bypass models, whose native artery is either coronary or femoral with average physiological parameters. Considering the blood to be a generalized Newtonian fluid, the shear-dependent viscosity is described by two well-known macroscopic non-Newtonian models (the Carreau-Yasuda model and the modified Cross model). The results were obtained by own developed computational software based on the pseudo-compressibility approach and on the cell-centred finite volume method defined on unstructured hexahedral grids.
  • The article presents the numerical investigation of non-Newtonian effects of steady blood flow in complete idealized 3-D bypass models, whose native artery is either coronary or femoral with average physiological parameters. Considering the blood to be a generalized Newtonian fluid, the shear-dependent viscosity is described by two well-known macroscopic non-Newtonian models (the Carreau-Yasuda model and the modified Cross model). The results were obtained by own developed computational software based on the pseudo-compressibility approach and on the cell-centred finite volume method defined on unstructured hexahedral grids. (en)
Title
  • Numerical simulation of non-Newtonian blood flow in bypass models
  • Numerická simulace proudění krve jako nenewtonské kapaliny modely bypassu (cs)
  • Numerical simulation of non-Newtonian blood flow in bypass models (en)
skos:prefLabel
  • Numerical simulation of non-Newtonian blood flow in bypass models
  • Numerická simulace proudění krve jako nenewtonské kapaliny modely bypassu (cs)
  • Numerical simulation of non-Newtonian blood flow in bypass models (en)
skos:notation
  • RIV/49777513:23520/08:00501435!RIV09-MSM-23520___
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  • Z(MSM4977751303)
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  • 1
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  • 383521
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  • RIV/49777513:23520/08:00501435
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  • coronary and femoral native artery; 3D bypass model; non-Newtonian flow; Carreau-Yasuda model; Cross model; FVM (en)
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http://linked.open...odStatuVydavatele
  • DE - Spolková republika Německo
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  • [CED14E651436]
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  • PAMM - Proceedings in Applied Mathematics and Mechanics
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  • 8
http://linked.open...iv/tvurceVysledku
  • Jonášová, Alena
  • Vimmr, Jan
http://linked.open...n/vavai/riv/zamer
issn
  • 1617-7061
number of pages
http://localhost/t...ganizacniJednotka
  • 23520
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