Effects of the Application of a Stern Foil on Ship Resistance: A Case Study of an Orela Crew Boat
The effects of the application of a stern hydrofoil on ship resistance were studied numerically using computational fluid dynamics (CFD) and were verified using data from model tests. A 40 m planing-hull Orela crew boat, with target top speed of 28 knots (Froude number, Fr = 0.73), was considered. T...
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doaj-220b85e2d318455e944706493a3ee5bd2020-11-25T02:13:28ZengUniversitas IndonesiaInternational Journal of Technology2086-96142087-21002017-12-01871266127510.14716/ijtech.v8i7.691691Effects of the Application of a Stern Foil on Ship Resistance: A Case Study of an Orela Crew BoatKetut Suastika0Affan Hidayat1Soegeng Riyadi2Department of Naval Architecture, Faculty of Marine Technology, ITS Surabaya, IndonesiaPT. Orela Shipyard, Ujung Pangkah, Gresik, IndonesiaPT. Orela Shipyard, Ujung Pangkah, Gresik, IndonesiaThe effects of the application of a stern hydrofoil on ship resistance were studied numerically using computational fluid dynamics (CFD) and were verified using data from model tests. A 40 m planing-hull Orela crew boat, with target top speed of 28 knots (Froude number, Fr = 0.73), was considered. The stern foil (NACA 64(1)212) was installed with the leading edge positioned precisely below the transom with angle of attack of 2 degrees at elevation 0.853 T below the water surface (where T is the boat’s draft). At relatively low speed (Fr < ~0.45) the application of a stern foil results in an increase in ship resistance (of up to 13.9%), while at relatively high speed (Fr > ~0.55) it results in a decrease in ship resistance (of up to 10.0%). As the Froude number increases, the resistance coefficient (CT) first increases, reaches a maximum value, and then decreases. Its maximum value occurs at Fr ? 0.5, which is consistent with the prediction of a resistance barrier at approximately this Froude number.http://ijtech.eng.ui.ac.id/article/view/691Computational fluid dynamics (CFD)Planing-hull crew boatShip resistanceStern foilTowing tests |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ketut Suastika Affan Hidayat Soegeng Riyadi |
spellingShingle |
Ketut Suastika Affan Hidayat Soegeng Riyadi Effects of the Application of a Stern Foil on Ship Resistance: A Case Study of an Orela Crew Boat International Journal of Technology Computational fluid dynamics (CFD) Planing-hull crew boat Ship resistance Stern foil Towing tests |
author_facet |
Ketut Suastika Affan Hidayat Soegeng Riyadi |
author_sort |
Ketut Suastika |
title |
Effects of the Application of a Stern Foil on Ship Resistance: A Case Study of an Orela Crew Boat |
title_short |
Effects of the Application of a Stern Foil on Ship Resistance: A Case Study of an Orela Crew Boat |
title_full |
Effects of the Application of a Stern Foil on Ship Resistance: A Case Study of an Orela Crew Boat |
title_fullStr |
Effects of the Application of a Stern Foil on Ship Resistance: A Case Study of an Orela Crew Boat |
title_full_unstemmed |
Effects of the Application of a Stern Foil on Ship Resistance: A Case Study of an Orela Crew Boat |
title_sort |
effects of the application of a stern foil on ship resistance: a case study of an orela crew boat |
publisher |
Universitas Indonesia |
series |
International Journal of Technology |
issn |
2086-9614 2087-2100 |
publishDate |
2017-12-01 |
description |
The effects of the application of a stern hydrofoil on ship resistance were studied numerically using computational fluid dynamics (CFD) and were verified using data from model tests. A 40 m planing-hull Orela crew boat, with target top speed of 28 knots (Froude number, Fr = 0.73), was considered. The stern foil (NACA 64(1)212) was installed with the leading edge positioned precisely below the transom with angle of attack of 2 degrees at elevation 0.853 T below the water surface (where T is the boat’s draft). At relatively low speed (Fr < ~0.45) the application of a stern foil results in an increase in ship resistance (of up to 13.9%), while at relatively high speed (Fr > ~0.55) it results in a decrease in ship resistance (of up to 10.0%). As the Froude number increases, the resistance coefficient (CT) first increases, reaches a maximum value, and then decreases. Its maximum value occurs at Fr ? 0.5, which is consistent with the prediction of a resistance barrier at approximately this Froude number. |
topic |
Computational fluid dynamics (CFD) Planing-hull crew boat Ship resistance Stern foil Towing tests |
url |
http://ijtech.eng.ui.ac.id/article/view/691 |
work_keys_str_mv |
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