Abstract
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the jointly organised 11th World Congress on Computational Mechanics WCCM XI, 5th European Conference on Computational Mechanics ECCM V, 6th European Conference on Computational Fluid Dynamics, ECFD VI |
| Place of Publication | Barcelona, Spain |
| Pages | 4741 - 4752 |
| Publication status | Published - 2014 |
| MoE publication type | A4 Article in a conference publication |
| Event | 11th World Congress on Computational Mechanics - 5th European Conference on Computational Mechanics - 6th European Conference on Computational Fluid Dynamics, WCCM XI - ECCM V - ECFD VI - Barcelona, Spain Duration: 20 Jul 2014 → 25 Jul 2014 |
Conference
| Conference | 11th World Congress on Computational Mechanics - 5th European Conference on Computational Mechanics - 6th European Conference on Computational Fluid Dynamics, WCCM XI - ECCM V - ECFD VI |
|---|---|
| Abbreviated title | WCCM XI - ECCM V - ECFD VI |
| Country | Spain |
| City | Barcelona |
| Period | 20/07/14 → 25/07/14 |
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Keywords
- cavitation
- propellers
- tip vortex
- turbulence models
- ships
Cite this
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Eddy vorticity in cavitating tip vortices modelled by different turbulence models using the RANS approach. / Sipilä, Tuomas; Sánchez-Caja, Antonio; Siikonen, T.
Proceedings of the jointly organised 11th World Congress on Computational Mechanics WCCM XI, 5th European Conference on Computational Mechanics ECCM V, 6th European Conference on Computational Fluid Dynamics, ECFD VI. Barcelona, Spain, 2014. p. 4741 - 4752.Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
TY - GEN
T1 - Eddy vorticity in cavitating tip vortices modelled by different turbulence models using the RANS approach
AU - Sipilä, Tuomas
AU - Sánchez-Caja, Antonio
AU - Siikonen, T.
N1 - Project code: 87250
PY - 2014
Y1 - 2014
N2 - VTT Technical Research Centre of Finland and Aalto University have been investigating numerical simulation of cavitating propellers. Special emphasis is placed on the simulation of cavitating tip vortices. The simulations are performed with the $k-{\epsilon> SST $k-{\omega> and EARSM turbulence models in wetted and cavitating conditions. The calculations are performed in uniform inflow. The propeller performance characteristics and the wake velocities in the wetted conditions were compared to the measurements. Additionally, the simulated cavitation extent on the propeller was compared to the measurements. Good correlation between the tests and simulations were found. The turbulence models gave significant differences to the tip vortex core solutions in wetted and cavitating conditions. The $k-{\epsilon> model gave high non-dimensional Reynolds stresses both in wetted and cavitating conditions. The anisotropic EARSM model gave the lowest Reynolds stresses in the wetted conditions in the vortex core. In cavitating conditions the SST $k-{\omega> and EARSM models gave very low Reynolds stresses to the vaporous vortex core.
AB - VTT Technical Research Centre of Finland and Aalto University have been investigating numerical simulation of cavitating propellers. Special emphasis is placed on the simulation of cavitating tip vortices. The simulations are performed with the $k-{\epsilon> SST $k-{\omega> and EARSM turbulence models in wetted and cavitating conditions. The calculations are performed in uniform inflow. The propeller performance characteristics and the wake velocities in the wetted conditions were compared to the measurements. Additionally, the simulated cavitation extent on the propeller was compared to the measurements. Good correlation between the tests and simulations were found. The turbulence models gave significant differences to the tip vortex core solutions in wetted and cavitating conditions. The $k-{\epsilon> model gave high non-dimensional Reynolds stresses both in wetted and cavitating conditions. The anisotropic EARSM model gave the lowest Reynolds stresses in the wetted conditions in the vortex core. In cavitating conditions the SST $k-{\omega> and EARSM models gave very low Reynolds stresses to the vaporous vortex core.
KW - cavitation
KW - propellers
KW - tip vortex
KW - turbulence models
KW - ships
M3 - Conference article in proceedings
SN - 978-84-942844-7-2
SP - 4741
EP - 4752
BT - Proceedings of the jointly organised 11th World Congress on Computational Mechanics WCCM XI, 5th European Conference on Computational Mechanics ECCM V, 6th European Conference on Computational Fluid Dynamics, ECFD VI
CY - Barcelona, Spain
ER -