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First and second-order models for the vortex length in cylinder-on-cone cyclones based on large-eddy simulations
Ellinor Arguilla Svensen1, Alex C Hoffmann1
1Department of Physics and Technology, University of Bergen, Allegaten 55 5007 Bergen, Norway.
Heliyon
|February 14, 2020
Summary
Predicting cyclone separator vortex length is crucial for preventing operational issues. This study uses advanced simulations to model vortex length, identifying key factors influencing its behavior and improving cyclone performance.
Area of Science:
- Fluid dynamics
- Mechanical engineering
- Particle separation technology
Background:
- Cyclone separators, commonly cylinder-on-cone designs, are vital for particle separation.
- The vortex core's behavior, particularly its length, significantly impacts cyclone operation.
- Unpredictable vortex length can lead to plugging and wear, hindering efficiency.
Purpose of the Study:
- To develop predictive models for vortex length in cyclone separators.
- To investigate the influence of geometrical and operational variables on vortex length.
- To enhance the understanding of factors governing vortex core attachment in cyclones.
Main Methods:
- Numerical Computational Fluid Dynamics (CFD) simulations were employed.
- Advanced turbulence modeling, specifically Large Eddy Simulation (LES), was utilized.
- Data from simulations were used to formulate models for vortex length.
Main Results:
- Models for predicting vortex length were successfully formulated.
- Key geometrical and operational variables influencing vortex length were identified.
- The nature of the effects of these variables on vortex length was elucidated.
Conclusions:
- The developed models provide a means to predict cyclone separator vortex length.
- Understanding and controlling vortex length is essential for optimizing cyclone performance and longevity.
- This research offers valuable insights for the design and operation of cyclone separators.
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