Several offshore applications deal with highly unsteady and detached flows, dominated by three dimensional effects. On such conditions, the usage of scale-resolving simulation (SRS) turbulence models has increased due to the well-known limitations of common RANS models. However, some of these offshore applications, such as flows past cylinders or raisers, present highly complex non-turbulent phenomena which, if not properly resolved, may pollute the outcome of any turbulence model. Therefore, it is crucial to mimic the flow conditions of the problem, the physical settings, and fulfil the numerical requirements of such problems to obtain reliable and accurate predictions. This paper assesses RANS and hybrid turbulence models, focusing on the dependence of the numerical predictions on the physical settings. To this end, the flow past a circular cylinder at a Reynolds number of 3900 is simulated using RANS, DDES and XLES models. The obtained results reveal a large dependence on the grid spatial resolution and physical settings, in particular on the computational domain width and boundary conditions. A substantial improvement of RANS predictions is found when a 3D computational domain is used. As expected, the hybrid models, DDES and XLES, lead to a better agreement with the experiments.
Skip Nav Destination
ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering
May 31–June 5, 2015
St. John’s, Newfoundland, Canada
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-5648-2
PROCEEDINGS PAPER
Flow Past a Circular Cylinder: A Comparison Between RANS and Hybrid Turbulence Models for a Low Reynolds Number
Filipe S. Pereira,
Filipe S. Pereira
MARIN Academy, Wageningen, The Netherlands
Search for other works by this author on:
Guilherme Vaz,
Guilherme Vaz
MARIN, Wageningen, The Netherlands
Search for other works by this author on:
Luís Eça
Luís Eça
IST-UL, Lisboa, Portugal
Search for other works by this author on:
Filipe S. Pereira
MARIN Academy, Wageningen, The Netherlands
Guilherme Vaz
MARIN, Wageningen, The Netherlands
Luís Eça
IST-UL, Lisboa, Portugal
Paper No:
OMAE2015-41235, V002T08A006; 11 pages
Published Online:
October 21, 2015
Citation
Pereira, FS, Vaz, G, & Eça, L. "Flow Past a Circular Cylinder: A Comparison Between RANS and Hybrid Turbulence Models for a Low Reynolds Number." Proceedings of the ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering. Volume 2: CFD and VIV. St. John’s, Newfoundland, Canada. May 31–June 5, 2015. V002T08A006. ASME. https://doi.org/10.1115/OMAE2015-41235
Download citation file:
101
Views
Related Proceedings Papers
Related Articles
Partially Averaged Navier–Stokes (PANS) Method for Turbulence Simulations: Flow Past a Circular Cylinder
J. Fluids Eng (December,2010)
Partially-Averaged Navier-Stokes Model for Turbulence: A Reynolds-Averaged Navier-Stokes to Direct Numerical Simulation Bridging Method
J. Appl. Mech (May,2006)
Assessment of the DDES- γ Model for the Simulation of a Highly Loaded Turbine Cascade
J. Turbomach (January,2024)
Related Chapters
Modeling and Realization on a Chip of Growth Hormone Secretion Mechanism
Intelligent Engineering Systems Through Artificial Neural Networks, Volume 17
Modeling in Biomedical Engineering
Intelligent Engineering Systems through Artificial Neural Networks, Volume 16
Two Advanced Methods
Applications of Mathematical Heat Transfer and Fluid Flow Models in Engineering and Medicine