R&D result detail

Original Title

PARAMETERS EFFECTING FORCED VORTEX FORMATION IN BLADE PASSAGEWAY OF DYNAMIC AIR CLASSIFIER

English Title

PARAMETERS EFFECTING FORCED VORTEX FORMATION IN BLADE PASSAGEWAY OF DYNAMIC AIR CLASSIFIER

Type

WoS Article

Original Abstract

Air classification of particulate materials is a method of classifying particles into coarse and fine fractions based on their size, density or shape. The performance of the rotor air classifier is affected by operating parameters which include the classifier rotor speed, air inlet velocity and material feed rate. Effects of operating and structural parameters on turbulent flow field patterns inside of a dynamic air classifier are investigated. Increasing the computing power, together with new turbulence models and approaches to simulate complex fully turbulent problems by solving Navier-Stokes equations allows studying and capturing smaller flow structures and properties more accurately. Velocity vector maps for varying operating parameters are studied by means of numerical simulations. The experimental section includes a visualization of flow patterns and velocity vector maps in the rotor region by the use of the particle image velocimetry (PIV). Results are compared and discussed.

English abstract

Air classification of particulate materials is a method of classifying particles into coarse and fine fractions based on their size, density or shape. The performance of the rotor air classifier is affected by operating parameters which include the classifier rotor speed, air inlet velocity and material feed rate. Effects of operating and structural parameters on turbulent flow field patterns inside of a dynamic air classifier are investigated. Increasing the computing power, together with new turbulence models and approaches to simulate complex fully turbulent problems by solving Navier-Stokes equations allows studying and capturing smaller flow structures and properties more accurately. Velocity vector maps for varying operating parameters are studied by means of numerical simulations. The experimental section includes a visualization of flow patterns and velocity vector maps in the rotor region by the use of the particle image velocimetry (PIV). Results are compared and discussed.

Keywords

rotor air classifier; forced vortex; blade passageway; particle image velocimetry (PIV); numerical simulation CFD

Key words in English

rotor air classifier; forced vortex; blade passageway; particle image velocimetry (PIV); numerical simulation CFD

Authors

ADAMČÍK, M.; SVĚRÁK, T.; PECIAR, P.

RIV year

2021

Released

06.12.2017

Publisher

CZECH TECHNICAL UNIV PRAGUE

Location

PRAGUE 6

ISBN

2336-5382

Periodical

Acta Polytechnica CTU Proceedings

Volume

57

Number

5

State

Czech Republic

Pages from

304

Pages to

315

Pages count

12

URL

http://ojs.cvut.cz/ojs/index.php/ap

BibTex

@article{BUT170407,
  author="Martin {Adamčík} and Tomáš {Svěrák} and Peter {Peciar}",
  title="PARAMETERS EFFECTING FORCED VORTEX FORMATION IN BLADE PASSAGEWAY OF DYNAMIC AIR CLASSIFIER",
  journal="Acta Polytechnica CTU Proceedings",
  year="2017",
  volume="57",
  number="5",
  pages="304--315",
  doi="10.14311/AP.2017.57.0304",
  issn="2336-5382",
  url="http://ojs.cvut.cz/ojs/index.php/ap"
}