UNCERTAINTY QUANTIFICATION OF SELF-PROPULSION ANALYSES WITH RANS-CFD AND COMPARISON WITH FULL-SCALE SHIP TRIALS
RANS-CFD is a well-established tool with widespread use in maritime industry and research. Valuable information might be extracted from the results of such simulations in terms of ship resistance and flow field variables. With recent advancements in computational power, it became possible to investi...
| Main Authors: | , , , |
|---|---|
| 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/413303 |
| _version_ | 1811185724714647552 |
|---|---|
| author | Ahmet Ziya Saydam Gözde Nur Küçüksu Mustafa İnsel Serhan Gökçay |
| author_facet | Ahmet Ziya Saydam Gözde Nur Küçüksu Mustafa İnsel Serhan Gökçay |
| author_sort | Ahmet Ziya Saydam |
| collection | DOAJ |
| description | RANS-CFD is a well-established tool with widespread use in maritime industry and research. Valuable information might be extracted from the results of such simulations in terms of ship resistance and flow field variables. With recent advancements in computational power, it became possible to investigate the performance of ships in self-propulsion conditions with RANS method. This paper presents the results of a study in which self-propulsion analyses of a small size product/oil tanker has been carried out at ship scale. The methodology proposed in this study makes use of open water propeller performance predictions, resistance analyses at model scale and self-propulsion computations at ship scale for a minimum of 2 different propeller loadings to obtain the self-propulsion point and respective performance parameters. In order to speed up the time-consuming self-propulsion computations, these cases have been solved with a single-phase approach. Resistance predictions have been compared with experimental findings. Uncertainty associated with prediction of resistance and thrust has been quantified. Additionally, sea trials have been conducted on the subject vessel and its two sisters and measured delivered power data have been used for evaluating the capability of the numerical method in self-propulsion predictions. Comparison of results indicate that the proposed self-propulsion computation methodology with RANS CFD at ship scale is capable of predicting delivered power with sufficient accuracy at an acceptable computational cost. |
| first_indexed | 2024-04-11T13:34:04Z |
| format | Article |
| id | doaj.art-2ff8364a4d04411086dc3eee74b6db94 |
| institution | Directory Open Access Journal |
| issn | 0007-215X 1845-5859 |
| language | English |
| last_indexed | 2024-04-11T13:34:04Z |
| publishDate | 2022-01-01 |
| publisher | Faculty of Mechanical Engineering and Naval Architecture |
| record_format | Article |
| series | Brodogradnja |
| spelling | doaj.art-2ff8364a4d04411086dc3eee74b6db942022-12-22T04:21:36ZengFaculty of Mechanical Engineering and Naval ArchitectureBrodogradnja0007-215X1845-58592022-01-0173410712910.21278/brod73406270UNCERTAINTY QUANTIFICATION OF SELF-PROPULSION ANALYSES WITH RANS-CFD AND COMPARISON WITH FULL-SCALE SHIP TRIALSAhmet Ziya Saydam0Gözde Nur Küçüksu1Mustafa İnsel2Serhan Gökçay3Piri Reis University, TurkeyHidroteknik Nautical Design Technologies Ltd., TurkeyHidroteknik Nautical Design Technologies Ltd., TurkeyHidroteknik Nautical Design Technologies Ltd., TurkeyRANS-CFD is a well-established tool with widespread use in maritime industry and research. Valuable information might be extracted from the results of such simulations in terms of ship resistance and flow field variables. With recent advancements in computational power, it became possible to investigate the performance of ships in self-propulsion conditions with RANS method. This paper presents the results of a study in which self-propulsion analyses of a small size product/oil tanker has been carried out at ship scale. The methodology proposed in this study makes use of open water propeller performance predictions, resistance analyses at model scale and self-propulsion computations at ship scale for a minimum of 2 different propeller loadings to obtain the self-propulsion point and respective performance parameters. In order to speed up the time-consuming self-propulsion computations, these cases have been solved with a single-phase approach. Resistance predictions have been compared with experimental findings. Uncertainty associated with prediction of resistance and thrust has been quantified. Additionally, sea trials have been conducted on the subject vessel and its two sisters and measured delivered power data have been used for evaluating the capability of the numerical method in self-propulsion predictions. Comparison of results indicate that the proposed self-propulsion computation methodology with RANS CFD at ship scale is capable of predicting delivered power with sufficient accuracy at an acceptable computational cost.https://hrcak.srce.hr/file/413303cfdransfull-scaleuncertaintyself-propulsion |
| spellingShingle | Ahmet Ziya Saydam Gözde Nur Küçüksu Mustafa İnsel Serhan Gökçay UNCERTAINTY QUANTIFICATION OF SELF-PROPULSION ANALYSES WITH RANS-CFD AND COMPARISON WITH FULL-SCALE SHIP TRIALS Brodogradnja cfd rans full-scale uncertainty self-propulsion |
| title | UNCERTAINTY QUANTIFICATION OF SELF-PROPULSION ANALYSES WITH RANS-CFD AND COMPARISON WITH FULL-SCALE SHIP TRIALS |
| title_full | UNCERTAINTY QUANTIFICATION OF SELF-PROPULSION ANALYSES WITH RANS-CFD AND COMPARISON WITH FULL-SCALE SHIP TRIALS |
| title_fullStr | UNCERTAINTY QUANTIFICATION OF SELF-PROPULSION ANALYSES WITH RANS-CFD AND COMPARISON WITH FULL-SCALE SHIP TRIALS |
| title_full_unstemmed | UNCERTAINTY QUANTIFICATION OF SELF-PROPULSION ANALYSES WITH RANS-CFD AND COMPARISON WITH FULL-SCALE SHIP TRIALS |
| title_short | UNCERTAINTY QUANTIFICATION OF SELF-PROPULSION ANALYSES WITH RANS-CFD AND COMPARISON WITH FULL-SCALE SHIP TRIALS |
| title_sort | uncertainty quantification of self propulsion analyses with rans cfd and comparison with full scale ship trials |
| topic | cfd rans full-scale uncertainty self-propulsion |
| url | https://hrcak.srce.hr/file/413303 |
| work_keys_str_mv | AT ahmetziyasaydam uncertaintyquantificationofselfpropulsionanalyseswithranscfdandcomparisonwithfullscaleshiptrials AT gozdenurkucuksu uncertaintyquantificationofselfpropulsionanalyseswithranscfdandcomparisonwithfullscaleshiptrials AT mustafainsel uncertaintyquantificationofselfpropulsionanalyseswithranscfdandcomparisonwithfullscaleshiptrials AT serhangokcay uncertaintyquantificationofselfpropulsionanalyseswithranscfdandcomparisonwithfullscaleshiptrials |