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Design of a bulbous bow by means of thin-ship theory
Thesis (M. Ing.) -- University of Stellenbosch, 1994.
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| Format: | Thesis |
| Language: | English |
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Stellenbosch : Stellenbosch University
2012
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| _version_ | 1867614113820049409 |
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| access_status_str | Open Access |
| author | Damant, Peter Douglas |
| author2 | Thiart, G. D. |
| author_browse | Damant, Peter Douglas Thiart, G. D. |
| author_facet | Thiart, G. D. Damant, Peter Douglas |
| author_sort | Damant, Peter Douglas |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Thesis (M. Ing.) -- University of Stellenbosch, 1994. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/58310 |
| institution | Stellenbosch University (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:46:52.985Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2012 |
| publishDateRange | 2012 |
| publishDateSort | 2012 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/58310 Design of a bulbous bow by means of thin-ship theory Damant, Peter Douglas Thiart, G. D. Stellenbosch University. Faculty of Engineering. Dept. of Mechanical & Mechatronic Engineering. Hulls (Naval architecture) -- Data processing Ship resistance -- Data processing Wave resistance (Hydrodynamics) -- Data processing Ships -- Hydrodynamics -- Data processing Dissertations -- Mechanical engineering Thesis (M. Ing.) -- University of Stellenbosch, 1994. In this thesis the design of a bulbous bow for a 24m Purse Seiner is described. The Kelvin wavemaking theory with thin-ship assumptions was used to calculate the wavemaking resistance of the ship. The disadvantage of this approximation is that the Purse Seiner is not a "thin-ship", but it is the best theory available with reasonable work input. A computer program was written with which to design the optimal bulb. The optimal bulb had the greatest decrease in the wavemaking resistance between the normal bow and bulbous bow trawlers. A theoretical decrease of the total resistance of 10% in the full load condition and 5.1% in the departure load condition at design speed is predicted. Smooth-water model tests showed that the correlated prototype effective power was decreased by 6.2% in the full load condition and by 6.5% in the departure load condition at design speed. Model tests in waves also showed that the bulb did not degrade the seakeeping performance of the trawler. Masters 2012-08-27T11:38:54Z 2012-08-27T11:38:54Z 1994 Thesis http://hdl.handle.net/10019.1/58310 en Stellenbosch University 200 pages : ill. application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Hulls (Naval architecture) -- Data processing Ship resistance -- Data processing Wave resistance (Hydrodynamics) -- Data processing Ships -- Hydrodynamics -- Data processing Dissertations -- Mechanical engineering Damant, Peter Douglas Design of a bulbous bow by means of thin-ship theory |
| title | Design of a bulbous bow by means of thin-ship theory |
| title_full | Design of a bulbous bow by means of thin-ship theory |
| title_fullStr | Design of a bulbous bow by means of thin-ship theory |
| title_full_unstemmed | Design of a bulbous bow by means of thin-ship theory |
| title_short | Design of a bulbous bow by means of thin-ship theory |
| title_sort | design of a bulbous bow by means of thin ship theory |
| topic | Hulls (Naval architecture) -- Data processing Ship resistance -- Data processing Wave resistance (Hydrodynamics) -- Data processing Ships -- Hydrodynamics -- Data processing Dissertations -- Mechanical engineering |
| url | http://hdl.handle.net/10019.1/58310 |
| work_keys_str_mv | AT damantpeterdouglas designofabulbousbowbymeansofthinshiptheory |