diplomsko delo
Denis Kragl (Author), Jure Marn (Mentor)

Abstract

V diplomskem delu je prikazan potek določitve tlačnih padcev skozi cev, če imamo opravka z nenewtonskimi psevdoplastičnimi tekočinami, ki upoštevajo potenčni zakon tečenja. Za izbrane tekočine (tekoče zobne paste) je bilo opravljenih več meritev viskoznosti, s pomočjo katerih smo določili modelne parametre potenčnega modela tečenja. Z uporabo parametrov smo analitično izračunali linijske izgube, lokalne pa določili s pomočjo računalniške dinamike tekočin. Rezultati kažejo dobro ujemanje z eksperimentalnimi podatki, ki smo jih pridobili med črpanjem zobnih past.

Keywords

viskoznost;tlačne izgube;nenewtonske tekočine;psevdoplastične tekočine;potenčni model tečenja;meritve viskoznosti;viskozimeter;reološke zakonitosti tekočin;računalniška dinamika tekočin;diplomske naloge;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UM FS - Faculty of Mechanical Engineering
Publisher: [D. Kragl]
UDC: 532.55:532.542(043.2)
COBISS: 19128854 Link will open in a new window
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Downloads: 238
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Other data

Secondary language: English
Secondary title: Pressure drops of non-newtonian fluid flow through pipes
Secondary abstract: This diploma thesis deals with calculations of pressure losses through pipe for non-Newtonian pseudoplastic fluids, which obey the power law. A series of viscosity measurements was performed for these fluids (liquid toothpastes), to determine modelling parameters for the power law model. Then, using these parameters, major losses were calculated using analytical equations, while minor losses were calculated using Computational Fluid Dynamics. An agreement was found, between results and experimental data obtained during actual pumpings of these fluids
Secondary keywords: viscosity;pressure loss;non-newtonian fluids;pseudoplastic fluids;power low model;viscosity measurement;viscometer;rheological properties of fluids;computational fluid dynamics;
URN: URN:SI:UM:
Type (COBISS): Bachelor thesis/paper
Thesis comment: Univ. v Mariboru, Fak. za strojništvo
Pages: IX, 49 str.
ID: 8890006