A Flow Study in the Cyclone with Particle
Separations
Karel Fraˇ na 1(B) , Christian Neubert 2 , Sylvio Simon 4 , Arastun Mammadov 3 ,
and Fariz Amirov 3
1 Technical University of Liberec, Studentska 2, 46117 Liberec, Czech Republic
Karel.Frana@tul.cz
2 Brandenburgische Technische Universität Cottbus –Senftenberg, Universitätsplatz 1,
01968 Senftenberg, Germany
Christian.Neubert@b-tu.de
3 Faculty of Mechanical Engineering and Robotics, Azerbaijan Technical University, 25 H.
Dschavid Ave., AZ1073 Baku, Azerbaijan
arastunmamedov@mail.ru, fariz.67@mail.ru
4 Mechanical Engineering Electrical and Energy System, Brandenburgische Technische
Universität Cottbus – Senftenberg, Universitätsplatz 1, 01968 Senftenberg, Germany
Sylvio.Simon@b-tu.de
Abstract. Unsteady turbulent flows with solid particles of different sizes in the
cyclone were studied numerically and experimentally. The grid studies and influence of the boundary condition prescription on the flow behavior in the cyclone
and the effectiveness of the particle separation were studied firstly numerically.
The turbulent flow was calculated by means of Large Eddy Simulations and this
flow problem was calculated parallel using eight processors. It was found theoretically that pressure at the bottom outlet of the cyclone has a significant impact
on the particle separation. This impact of the pressure at the cyclone function was
examined also using experiments and pressure distributions for different flow rate
intensities for several locations in the cyclone were determined. These experimental results can be used for a validation of numerical results. Furthermore, the
larger losses were observed in the immersion tube due to higher flow velocity and
impulse exchange in the vortex core.
Keywords: Cyclone flows · Particle separations · Pressure distributions
1 Introduction
A particle behavior in the gas is a typical flow problem that can be found in many
situations. The flow particle simulation enables e.g. to estimate a propagation of the
particle pollution in the environment or to solve the particle influence in the technical
equipment. Particle simulation represents the complex problem in which the one phase
(gas or liquid) is a continuous flow problem and particle behavior can be viewed as
a discrete problem. The problem of the multiphase flow problem can be found in [1]
or in [5]. The knowledge of the particle flow simulation in the environmental problem
can be adopted for the simulations of the seed flow. In the work [2], the approach of
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2021
S. N. Atluri and I. Vušanovi´ c (Eds.): ICCES 2020, MMS 97, pp. 52–59, 2021.
https://doi.org/10.1007/978-3-030-64690-5_6
Separations
Karel Fraˇ na 1(B) , Christian Neubert 2 , Sylvio Simon 4 , Arastun Mammadov 3 ,
and Fariz Amirov 3
1 Technical University of Liberec, Studentska 2, 46117 Liberec, Czech Republic
Karel.Frana@tul.cz
2 Brandenburgische Technische Universität Cottbus –Senftenberg, Universitätsplatz 1,
01968 Senftenberg, Germany
Christian.Neubert@b-tu.de
3 Faculty of Mechanical Engineering and Robotics, Azerbaijan Technical University, 25 H.
Dschavid Ave., AZ1073 Baku, Azerbaijan
arastunmamedov@mail.ru, fariz.67@mail.ru
4 Mechanical Engineering Electrical and Energy System, Brandenburgische Technische
Universität Cottbus – Senftenberg, Universitätsplatz 1, 01968 Senftenberg, Germany
Sylvio.Simon@b-tu.de
Abstract. Unsteady turbulent flows with solid particles of different sizes in the
cyclone were studied numerically and experimentally. The grid studies and influence of the boundary condition prescription on the flow behavior in the cyclone
and the effectiveness of the particle separation were studied firstly numerically.
The turbulent flow was calculated by means of Large Eddy Simulations and this
flow problem was calculated parallel using eight processors. It was found theoretically that pressure at the bottom outlet of the cyclone has a significant impact
on the particle separation. This impact of the pressure at the cyclone function was
examined also using experiments and pressure distributions for different flow rate
intensities for several locations in the cyclone were determined. These experimental results can be used for a validation of numerical results. Furthermore, the
larger losses were observed in the immersion tube due to higher flow velocity and
impulse exchange in the vortex core.
Keywords: Cyclone flows · Particle separations · Pressure distributions
1 Introduction
A particle behavior in the gas is a typical flow problem that can be found in many
situations. The flow particle simulation enables e.g. to estimate a propagation of the
particle pollution in the environment or to solve the particle influence in the technical
equipment. Particle simulation represents the complex problem in which the one phase
(gas or liquid) is a continuous flow problem and particle behavior can be viewed as
a discrete problem. The problem of the multiphase flow problem can be found in [1]
or in [5]. The knowledge of the particle flow simulation in the environmental problem
can be adopted for the simulations of the seed flow. In the work [2], the approach of
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2021
S. N. Atluri and I. Vušanovi´ c (Eds.): ICCES 2020, MMS 97, pp. 52–59, 2021.
https://doi.org/10.1007/978-3-030-64690-5_6