Primož Ternik (Author), Jure Marn (Mentor)

Abstract

In the paper a new rheological model for an electrostatic ash and water mixture is proposed. The fundamental equation of the rheological model was used to determine the relationship between the shear stress and the shear rate as well as the equation of a velocity profile for the flow through a straight pipe. Experimental results obtained from a capillary viscometer were used as the basis to determine the parameters for the proposed model by the non-linear regression analysis. With the Quadratic law a numerical analysis of a mixture flow through a capillary pipe with the finite volume method was performed. The derived equations for the velocity profile, shear stress and shear rate were validated through a comparison of numerically obtained and theoretical results. Finally, the compariosn between the Quadratic and the Power law is presented.

Keywords

mehanika fluidov;nenewtonski fluid;zmes elektrofilterskega pepela in vode;tok v ceveh;tok v kapilarni cevi;reološki model;hitrostni profil;metoda končnih volumnov;numerična analiza;kvadratni model;potenčni zakon;fluid mechanics;non-Newtonian fluids;mixture of electrofilter ash and water;flow in pipes;capillary pipes;rheological model;velocity profile;shear stress;finite volume method;numerical analysis;quadratic law;power law;

Data

Language: English
Year of publishing:
Typology: 1.08 - Published Scientific Conference Contribution
Organization: UM FS - Faculty of Mechanical Engineering
UDC: 532.135:532.584:532.542
COBISS: 8334102 Link will open in a new window
Views: 1822
Downloads: 36
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Other data

Secondary language: English
Secondary keywords: mehanika fluidov;nenewtonski fluid;zmes elektrofilterskega pepela in vode;tok v ceveh;tok v kapilarni cevi;reološki model;hitrostni profil;metoda končnih volumnov;numerična analiza;kvadratni model;potenčni zakon;mehanika fluidov;
URN: URN:SI:UM:
Pages: 10 f.
Keywords (UDC): mathematics;natural sciences;naravoslovne vede;matematika;physics;fizika;fluid mechanics in general;mechanics of liquids (hydromechanics);mehanika tekočin;mehanika kapljevin;hydrostatics in general;mathematics;natural sciences;naravoslovne vede;matematika;physics;fizika;fluid mechanics in general;mechanics of liquids (hydromechanics);mehanika tekočin;mehanika kapljevin;liquid motion;hydrodynamics;mathematics;natural sciences;naravoslovne vede;matematika;physics;fizika;fluid mechanics in general;mechanics of liquids (hydromechanics);mehanika tekočin;mehanika kapljevin;liquid motion;hydrodynamics;
ID: 11473