About: Terminal Falling Velocity of Spherical Particles in Shear Thinning Viscoelastic Fluids     Goto   Sponge   NotDistinct   Permalink

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  • In this contribution, new measurements are presented of the terminal velocities of the spherical particles falling in two-component shear thinning viscoelastic polymer solutions. The experimental data obtained are compared with the theoretical ones calculated for the fall in purely viscous fluids with viscosity functions following the four parameter Carreau flow model. An evident enhancement of the drag coefficient, which is undoubtedly caused by normal stress effects, has been observed for the polymer solutions tested.
  • In this contribution, new measurements are presented of the terminal velocities of the spherical particles falling in two-component shear thinning viscoelastic polymer solutions. The experimental data obtained are compared with the theoretical ones calculated for the fall in purely viscous fluids with viscosity functions following the four parameter Carreau flow model. An evident enhancement of the drag coefficient, which is undoubtedly caused by normal stress effects, has been observed for the polymer solutions tested. (en)
  • V práci jsou prezentovány nová měření mezní rychlosti kulových částic v dvoukomponetních roztocích polymerů s pseudolastickými a současně viskoelastickými vlastnostmi. Experimentální výsledky jsou porovnány s teoretickými výpočty pro pád v čistě viskózních tekutinách za použití viskozitní funkce ve tvaru Carreauova čtyř parametrového modelu. Výrazné zvýšení odporového koeficientu bylo pozorováno v testovaných roztocích a je nepochybně způsobeno účinkem normálového napětí. (cs)
Title
  • Terminal Falling Velocity of Spherical Particles in Shear Thinning Viscoelastic Fluids
  • Terminal Falling Velocity of Spherical Particles in Shear Thinning Viscoelastic Fluids (en)
  • Mezní pádová rychlost kulových částic v pseudoplasticko-viskoelastických tekutinách (cs)
skos:prefLabel
  • Terminal Falling Velocity of Spherical Particles in Shear Thinning Viscoelastic Fluids
  • Terminal Falling Velocity of Spherical Particles in Shear Thinning Viscoelastic Fluids (en)
  • Mezní pádová rychlost kulových částic v pseudoplasticko-viskoelastických tekutinách (cs)
skos:notation
  • RIV/00216275:25310/08:00007625!RIV09-GA0-25310___
http://linked.open...avai/riv/aktivita
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  • P(GD104/08/H055), S
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  • 399599
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  • RIV/00216275:25310/08:00007625
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  • free fall; spherical particle; viscoelastic fluids; drag coefficient (en)
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  • [8D2F003F2B33]
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  • Tatranské Matliare, SK
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  • Bratislava
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  • Proceedings of 35th International Conference of Slovak Society of Chemical Engineering
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  • Machač, Ivan
  • Šiška, Bedřich
  • Strnadel, Jaroslav
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number of pages
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  • Slovak Society of Chemical Engineering
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  • 978-80-227-2903-1
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  • 25310
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