Journal bearing with non-Newtonian fluid in the area of Taylor vortices

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F19%3A10244163" target="_blank" >RIV/61989100:27230/19:10244163 - isvavai.cz</a>

Výsledek na webu

<a href="https://iopscience.iop.org/article/10.1088/1755-1315/240/6/062013/pdf" target="_blank" >https://iopscience.iop.org/article/10.1088/1755-1315/240/6/062013/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1755-1315/240/6/062013" target="_blank" >10.1088/1755-1315/240/6/062013</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Journal bearing with non-Newtonian fluid in the area of Taylor vortices

Popis výsledku v původním jazyce

The constitutive relation for tension tensor of a non-Newtonian liquid is defined in the first part of the article. The solution will focus on identifying the interaction of the fluid with the rotating shaft. Journal bearing theory is well developed for Newtonian fluid and outside the area of Taylor vortices. In this work, the matrices of mass M, stiffness K and damping B will be determined outside and in the region of Taylor vortices. It turns out that the bearing properties can significantly differ in the area of Taylor vortices, where the M, B, K matrices are different from the area outside of Taylor vortices. However, the greatest importance of this work lies in the computational modelling of the flow of non-Newtonian liquid in the region of Taylor vortices and comparison with the results of the solution outside of this area. The solution will also be used for modelling of ferromagnetic and magnetorheological fluids, where their viscosity significantly changes depending on the value of the magnetic induction. Matrices M, K, B will therefore include the dependence on magnetic induction. Controlling the value of magnetic induction can significantly affect the dynamics of the pump rotors and water turbines. (C) Published under licence by IOP Publishing Ltd.

Název v anglickém jazyce

Journal bearing with non-Newtonian fluid in the area of Taylor vortices

Popis výsledku anglicky

The constitutive relation for tension tensor of a non-Newtonian liquid is defined in the first part of the article. The solution will focus on identifying the interaction of the fluid with the rotating shaft. Journal bearing theory is well developed for Newtonian fluid and outside the area of Taylor vortices. In this work, the matrices of mass M, stiffness K and damping B will be determined outside and in the region of Taylor vortices. It turns out that the bearing properties can significantly differ in the area of Taylor vortices, where the M, B, K matrices are different from the area outside of Taylor vortices. However, the greatest importance of this work lies in the computational modelling of the flow of non-Newtonian liquid in the region of Taylor vortices and comparison with the results of the solution outside of this area. The solution will also be used for modelling of ferromagnetic and magnetorheological fluids, where their viscosity significantly changes depending on the value of the magnetic induction. Matrices M, K, B will therefore include the dependence on magnetic induction. Controlling the value of magnetic induction can significantly affect the dynamics of the pump rotors and water turbines. (C) Published under licence by IOP Publishing Ltd.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

IOP Conference Series: Earth and Environmental Science. Volume 240

ISBN

—

ISSN

1755-1307

e-ISSN

1755-1315

Počet stran výsledku

9

Strana od-do

1-9

Název nakladatele

IOP Publishing

Místo vydání

Bristol

Místo konání akce

Kjóto

Datum konání akce

16. 9. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—