Detail publikačního výsledku

Research of Flow Stability of Non-Newtonian Magnetorheological Fluid Flow in the Gap between Two Cylinders

KOZUBKOVÁ, M.; JABLONSKÁ, J.; BOJKO, M.; POCHYLÝ, F.; FIALOVÁ, S.

Originální název

Research of Flow Stability of Non-Newtonian Magnetorheological Fluid Flow in the Gap between Two Cylinders

Anglický název

Research of Flow Stability of Non-Newtonian Magnetorheological Fluid Flow in the Gap between Two Cylinders

Druh

Článek WoS

Originální abstrakt

This paper deals with a mathematical modeling of flow stability of Newtonian and non-Newtonian fluids in the gap between two concentric cylinders, one of which rotates. A typical feature of the flow is the formation of a vortex flow, so-called Taylor vortices. Vortex structures are affected by the speed of the rotating cylinder and the physical properties of the fluids, i.e., viscosity and density. Analogy in terms of viscosity is assumed for non-Newtonian and magnetorheological fluids. Mathematical models of laminar, transient and turbulent flow with constant viscosity and viscosity as a function of the deformation gradient were formulated and numerically solved to analyze the stability of single-phase flow. To verify them, a physical experiment was performed for Newtonian fluids using visualizations of vortex structures-Taylor vortices. Based on the agreement of selected numerical and physical results, the experience was used for numerical simulations of non-Newtonian magnetorheological fluid flow.

Anglický abstrakt

This paper deals with a mathematical modeling of flow stability of Newtonian and non-Newtonian fluids in the gap between two concentric cylinders, one of which rotates. A typical feature of the flow is the formation of a vortex flow, so-called Taylor vortices. Vortex structures are affected by the speed of the rotating cylinder and the physical properties of the fluids, i.e., viscosity and density. Analogy in terms of viscosity is assumed for non-Newtonian and magnetorheological fluids. Mathematical models of laminar, transient and turbulent flow with constant viscosity and viscosity as a function of the deformation gradient were formulated and numerically solved to analyze the stability of single-phase flow. To verify them, a physical experiment was performed for Newtonian fluids using visualizations of vortex structures-Taylor vortices. Based on the agreement of selected numerical and physical results, the experience was used for numerical simulations of non-Newtonian magnetorheological fluid flow.

Klíčová slova

Taylor vortices; non-Newtonian viscosity; magnetorheological fluids; experiment; numerical simulation; CFD

Klíčová slova v angličtině

Taylor vortices; non-Newtonian viscosity; magnetorheological fluids; experiment; numerical simulation; CFD

Autoři

KOZUBKOVÁ, M.; JABLONSKÁ, J.; BOJKO, M.; POCHYLÝ, F.; FIALOVÁ, S.

Rok RIV

2022

Vydáno

15.10.2021

Nakladatel

MDPI

Místo

BASEL

ISSN

2227-9717

Periodikum

Processes

Svazek

9

Číslo

10

Stát

Švýcarská konfederace

Strany od

1

Strany do

16

Strany počet

16

URL

https://www.mdpi.com/2227-9717/9/10/1832

Plný text v Digitální knihovně

http://hdl.handle.net/11012/203338

BibTex

@article{BUT175898,
  author="Milada {Kozubková} and Jana {Jablonská} and Marian {Bojko} and František {Pochylý} and Simona {Fialová}",
  title="Research of Flow Stability of Non-Newtonian Magnetorheological Fluid Flow in the Gap between Two Cylinders",
  journal="Processes",
  year="2021",
  volume="9",
  number="10",
  pages="1--16",
  doi="10.3390/pr9101832",
  url="https://www.mdpi.com/2227-9717/9/10/1832"
}

Dokumenty

processes-09-01832-v3