CFD Simulation of Air Cyclone Separator
A computational fluid dynamics model was developed for air cyclone separator in order to predict the flow pattern inside the cyclone using an Eulerian approach, three dimensions Reynolds-Average Navier-Stokes equations, closed via the Reynolds Stress model as a turbulence model for air flow. The pa...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Tikrit University
2016-08-01
|
| Series: | Tikrit Journal of Engineering Sciences |
| Subjects: | |
| Online Access: | https://tj-es.com/ojs/index.php/tjes/article/view/296 |
| _version_ | 1797782483304972288 |
|---|---|
| author | Nuha wathq Nema Saad Nahi Saleh Fayadh Mohamed Abed |
| author_facet | Nuha wathq Nema Saad Nahi Saleh Fayadh Mohamed Abed |
| author_sort | Nuha wathq Nema |
| collection | DOAJ |
| description |
A computational fluid dynamics model was developed for air cyclone separator in order to predict the flow pattern inside the cyclone using an Eulerian approach, three dimensions Reynolds-Average Navier-Stokes equations, closed via the Reynolds Stress model as a turbulence model for air flow. The particles were modeled as a discrete phase model using the Lagrangian transport model with turbulent particle dispersion. Computational fluid dynamics modeling was employed to investigate fluid flow patterns and particle trajectories at steady state operating conditions of Stairmand cyclone. Analysis of a computational fluid dynamics simulation accurately revealed that the air flow behavior in cyclone separator consists of two vortexes : an outer vortex with a downwardly directed axial flow and an inner vortex with an upwardly directed flow, this flow profile known as Rankine vortex. A low-pressure zone appeared in the center line of the cyclone due to high swirling velocity. The results showed that the pressure drop increased with increasing the inlet air velocity. The results of the collection efficiency showed that the efficiency increased as the particles diameter increased. A good agreement achieved between the simulation results and published experimental results. The computational fluid dynamics code (ANSYS FLUENT 14.5) with the Reynolds Stress model as the turbulence model, predicted very well the flow field parameters of cyclones and can be used in cyclone design for any dimensions.
|
| first_indexed | 2024-03-13T00:11:35Z |
| format | Article |
| id | doaj.art-64ce47266c9a43d3bb8f44a20a88c2f3 |
| institution | Directory Open Access Journal |
| issn | 1813-162X 2312-7589 |
| language | English |
| last_indexed | 2024-03-13T00:11:35Z |
| publishDate | 2016-08-01 |
| publisher | Tikrit University |
| record_format | Article |
| series | Tikrit Journal of Engineering Sciences |
| spelling | doaj.art-64ce47266c9a43d3bb8f44a20a88c2f32023-07-12T12:54:00ZengTikrit UniversityTikrit Journal of Engineering Sciences1813-162X2312-75892016-08-0123310.25130/tjes.23.3.03CFD Simulation of Air Cyclone SeparatorNuha wathq Nema0Saad Nahi Saleh1Fayadh Mohamed Abed2Chemical Engineering Department, Tikrit University, Salahaldeen, IraqChemical Engineering Department, Tikrit University, Salahaldeen, IraqMechanical Engineering Department, Tikrit University, Salahaldeen, Iraq A computational fluid dynamics model was developed for air cyclone separator in order to predict the flow pattern inside the cyclone using an Eulerian approach, three dimensions Reynolds-Average Navier-Stokes equations, closed via the Reynolds Stress model as a turbulence model for air flow. The particles were modeled as a discrete phase model using the Lagrangian transport model with turbulent particle dispersion. Computational fluid dynamics modeling was employed to investigate fluid flow patterns and particle trajectories at steady state operating conditions of Stairmand cyclone. Analysis of a computational fluid dynamics simulation accurately revealed that the air flow behavior in cyclone separator consists of two vortexes : an outer vortex with a downwardly directed axial flow and an inner vortex with an upwardly directed flow, this flow profile known as Rankine vortex. A low-pressure zone appeared in the center line of the cyclone due to high swirling velocity. The results showed that the pressure drop increased with increasing the inlet air velocity. The results of the collection efficiency showed that the efficiency increased as the particles diameter increased. A good agreement achieved between the simulation results and published experimental results. The computational fluid dynamics code (ANSYS FLUENT 14.5) with the Reynolds Stress model as the turbulence model, predicted very well the flow field parameters of cyclones and can be used in cyclone design for any dimensions. https://tj-es.com/ojs/index.php/tjes/article/view/296CFDCyclone SeparatorLagrangian transport modelRankine vortex |
| spellingShingle | Nuha wathq Nema Saad Nahi Saleh Fayadh Mohamed Abed CFD Simulation of Air Cyclone Separator Tikrit Journal of Engineering Sciences CFD Cyclone Separator Lagrangian transport model Rankine vortex |
| title | CFD Simulation of Air Cyclone Separator |
| title_full | CFD Simulation of Air Cyclone Separator |
| title_fullStr | CFD Simulation of Air Cyclone Separator |
| title_full_unstemmed | CFD Simulation of Air Cyclone Separator |
| title_short | CFD Simulation of Air Cyclone Separator |
| title_sort | cfd simulation of air cyclone separator |
| topic | CFD Cyclone Separator Lagrangian transport model Rankine vortex |
| url | https://tj-es.com/ojs/index.php/tjes/article/view/296 |
| work_keys_str_mv | AT nuhawathqnema cfdsimulationofaircycloneseparator AT saadnahisaleh cfdsimulationofaircycloneseparator AT fayadhmohamedabed cfdsimulationofaircycloneseparator |