PREDICTION OF CAVITATION ON SHIPS
The emphasis of this paper is on challenges in simulation of cavitating flows, especially flows around propeller and rudder. First the sources of errors in predictions based on Computational Fluid Dynamics (CFD) are highlighted: the accuracy of geometry, grid quality and fineness, turbulence modelin...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Faculty of Mechanical Engineering and Naval Architecture
2022-01-01
|
| Series: | Brodogradnja |
| Subjects: | |
| Online Access: | https://hrcak.srce.hr/file/407255 |
| _version_ | 1811301052967813120 |
|---|---|
| author | Milovan Perić |
| author_facet | Milovan Perić |
| author_sort | Milovan Perić |
| collection | DOAJ |
| description | The emphasis of this paper is on challenges in simulation of cavitating flows, especially flows around propeller and rudder. First the sources of errors in predictions based on Computational Fluid Dynamics (CFD) are highlighted: the accuracy of geometry, grid quality and fineness, turbulence modeling and cavitation modeling. The interaction between errors from different sources is also discussed. The importance of turbulence in the flow upstream of propeller and the difficulty of accounting for it is described next. Special attention is paid to the prediction of tip-vortex cavitation and to scale effects. Results from simulations are compared to experimental data from SVA Potsdam, except for the full-scale analysis of flow around hull, propeller and rudder, for which no experimental data is available. It is concluded that cavitation can be predicted to a degree which makes simulation an indispensable tool for design and optimization of maritime vessels. |
| first_indexed | 2024-04-13T07:02:00Z |
| format | Article |
| id | doaj.art-46b29ac3f98840bcb9adfd56f16cc3d0 |
| institution | Directory Open Access Journal |
| issn | 0007-215X 1845-5859 |
| language | English |
| last_indexed | 2024-04-13T07:02:00Z |
| publishDate | 2022-01-01 |
| publisher | Faculty of Mechanical Engineering and Naval Architecture |
| record_format | Article |
| series | Brodogradnja |
| spelling | doaj.art-46b29ac3f98840bcb9adfd56f16cc3d02022-12-22T02:57:05ZengFaculty of Mechanical Engineering and Naval ArchitectureBrodogradnja0007-215X1845-58592022-01-01733395810.21278/brod73303270PREDICTION OF CAVITATION ON SHIPSMilovan Perić0University of Duisburg-Essen; CoMeT Continuum Mechanics Technologies GmbHThe emphasis of this paper is on challenges in simulation of cavitating flows, especially flows around propeller and rudder. First the sources of errors in predictions based on Computational Fluid Dynamics (CFD) are highlighted: the accuracy of geometry, grid quality and fineness, turbulence modeling and cavitation modeling. The interaction between errors from different sources is also discussed. The importance of turbulence in the flow upstream of propeller and the difficulty of accounting for it is described next. Special attention is paid to the prediction of tip-vortex cavitation and to scale effects. Results from simulations are compared to experimental data from SVA Potsdam, except for the full-scale analysis of flow around hull, propeller and rudder, for which no experimental data is available. It is concluded that cavitation can be predicted to a degree which makes simulation an indispensable tool for design and optimization of maritime vessels.https://hrcak.srce.hr/file/407255simulationflowpropellercavitation |
| spellingShingle | Milovan Perić PREDICTION OF CAVITATION ON SHIPS Brodogradnja simulation flow propeller cavitation |
| title | PREDICTION OF CAVITATION ON SHIPS |
| title_full | PREDICTION OF CAVITATION ON SHIPS |
| title_fullStr | PREDICTION OF CAVITATION ON SHIPS |
| title_full_unstemmed | PREDICTION OF CAVITATION ON SHIPS |
| title_short | PREDICTION OF CAVITATION ON SHIPS |
| title_sort | prediction of cavitation on ships |
| topic | simulation flow propeller cavitation |
| url | https://hrcak.srce.hr/file/407255 |
| work_keys_str_mv | AT milovanperic predictionofcavitationonships |