Wave Drift Force and Moment in Deep and Shallow Water
To attain a low Energy Efficiency Design Index (EEDI), large ships possibly lack the necessary propulsion power to avoid stranding in case of strong adverse wind and wave conditions. To estimate this danger, here, the longitudinal and transverse drift force and the yaw drift moment caused by regular...
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MDPI AG
2025-01-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/13/1/64 |
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| author | Heinrich Söding |
| author_facet | Heinrich Söding |
| author_sort | Heinrich Söding |
| collection | DOAJ |
| description | To attain a low Energy Efficiency Design Index (EEDI), large ships possibly lack the necessary propulsion power to avoid stranding in case of strong adverse wind and wave conditions. To estimate this danger, here, the longitudinal and transverse drift force and the yaw drift moment caused by regular waves of arbitrary frequency and direction are computed using a 3-dimensional Rankine panel method. In many cases, drift forces are larger in shallow than in deep water. Therefore, the theory for computing drift force and moment is extended to shallow water. As published results for shallow water are lacking, the method is verified only for deep water by comparisons with results of model experiments and CFD computations for three ships. For one of them, the dependence of non-dimensional coefficients of longitudinal and transverse drift force and of the drift yaw moment on wave frequency, wave angle, water depth and ship speed is shown. The source files of the programs used for these computations may be obtained from the author if an adequate fee is donated to the Medecins Sans Frontieres or to the author. |
| format | Article |
| id | doaj-art-9b6d73e9fe5341c799a9aacebd0081d3 |
| institution | Kabale University |
| issn | 2077-1312 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj-art-9b6d73e9fe5341c799a9aacebd0081d32025-01-24T13:36:44ZengMDPI AGJournal of Marine Science and Engineering2077-13122025-01-011316410.3390/jmse13010064Wave Drift Force and Moment in Deep and Shallow WaterHeinrich Söding0Institute for Fluid Dynamics and Ship Theory, Technical University Hamburg, 21073 Hamburg, GermanyTo attain a low Energy Efficiency Design Index (EEDI), large ships possibly lack the necessary propulsion power to avoid stranding in case of strong adverse wind and wave conditions. To estimate this danger, here, the longitudinal and transverse drift force and the yaw drift moment caused by regular waves of arbitrary frequency and direction are computed using a 3-dimensional Rankine panel method. In many cases, drift forces are larger in shallow than in deep water. Therefore, the theory for computing drift force and moment is extended to shallow water. As published results for shallow water are lacking, the method is verified only for deep water by comparisons with results of model experiments and CFD computations for three ships. For one of them, the dependence of non-dimensional coefficients of longitudinal and transverse drift force and of the drift yaw moment on wave frequency, wave angle, water depth and ship speed is shown. The source files of the programs used for these computations may be obtained from the author if an adequate fee is donated to the Medecins Sans Frontieres or to the author.https://www.mdpi.com/2077-1312/13/1/64seakeepingdrift forceshallow waterpanel method |
| spellingShingle | Heinrich Söding Wave Drift Force and Moment in Deep and Shallow Water Journal of Marine Science and Engineering seakeeping drift force shallow water panel method |
| title | Wave Drift Force and Moment in Deep and Shallow Water |
| title_full | Wave Drift Force and Moment in Deep and Shallow Water |
| title_fullStr | Wave Drift Force and Moment in Deep and Shallow Water |
| title_full_unstemmed | Wave Drift Force and Moment in Deep and Shallow Water |
| title_short | Wave Drift Force and Moment in Deep and Shallow Water |
| title_sort | wave drift force and moment in deep and shallow water |
| topic | seakeeping drift force shallow water panel method |
| url | https://www.mdpi.com/2077-1312/13/1/64 |
| work_keys_str_mv | AT heinrichsoding wavedriftforceandmomentindeepandshallowwater |