Pregled teorijskih modela nenewtonovskih fluida

undergraduate thesis

• Title (english): A survey of theoretical models of non-newtonian fluids
• Author: Monika Klier
• Mentor: Vladimir Dananić (mentor)
• Committee member: Vladimir Dananić (predsjednik povjerenstva)
• Committee member: Gordana Matijašić (član povjerenstva)
• Committee member: Iva Movre Šapić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2020-09-25, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract

Tema ovog završnog rada su teorijski modeli kojima se pokušava opisati ponašanje nenewtonovih fluida . Reološki dijagram daje grafički prikaz o ponašanju fluida tijekom različitih smičnih brzina, tj. tijekom različite brzine deformacije. Nenewtonovi fluidi razlikuju se od newtonovih jer se njihova viskoznost mijenja sa smičnom brzinom, tj. s brzinom deformacije fluida. Izvedeni su opći zakoni očuvanja koji vrijede za elementarni volumen fluida. Opisan je utjecaj mikrostrukture na reološko ponašanje fluida te je povezan sa primjerima iz svakodnevnice.

Abstract (english)

This paper gives a survey of theoretical models of non-newtonian fluids which try to describe the flow of under certain conditions. A rheological diagram gives a graphical representation of the behavior of the fluid when different shear rates are applied. Non-newtonian fluids differ from newtonian fluids because their viscosity is the function of shear rate. General conservation laws are derived for an elementary volume. The effect microstructure has on rheological behavior of fluid is illustrated and it is linked to common everyday examples.

• Keywords: nenewtonovi fluidi; viskoznost; prividna viskoznost; reološki dijagram; smično naprezanje
• Keywords (english): non-newtonian fluids; viscosity; apparent viscosity; rheological diagram; shear-strain
• Language: croatian
• URN:NBN: urn:nbn:hr:149:116780
• Study programme: Title: Chemical Engineering - Undergraduate study; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-05-04 11:10:59