Prediction of the acceleration and stopping manoeuvres of a bare hull surface combatant by closed-form solutions and CFD

Suleyman Duman; Sakir Bal

doi:10.1016/j.oceaneng.2021.109428

Prediction of the acceleration and stopping manoeuvres of a bare hull surface combatant by closed-form solutions and CFD

Suleyman Duman^*, Sakir Bal

^*Corresponding author for this work

Department of Naval Architecture and Marine Engineering

Yildiz Technical University

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

In this study, the acceleration and stopping manoeuvres of a bare hull surface combatant have practically been predicted by closed-form (analytical) solutions derived from basic mechanical principles. They have also been simulated directly by an unsteady RANS (Reynolds-averaged Navier-Stokes) solver with overset grid structure to compare the results with those of closed-form approaches. A well-known surface combatant model DTMB5415 has been chosen for validation. The instantaneous drag forces of the model ship in the acceleration and stopping manoeuvres have been provided by both CFD and Holtrop's methods. It has been observed that the results by analytical solutions have a good match with those of the manoeuvring simulations based on unsteady RANS solver. Successful predictions have also been made consistent with the results obtained when experimental resistance values are used in analytical solutions. It has been concluded that the closed-form solution methods yield practically satisfactory results in a very short time when a fast resistance prediction method, such as Holtrop's method or CFD, is used.

Original language	English
Article number	109428
Journal	Ocean Engineering
Volume	235
DOIs	https://doi.org/10.1016/j.oceaneng.2021.109428
Publication status	Published - 1 Sept 2021

Bibliographical note

Publisher Copyright:
© 2021 Elsevier Ltd

Funding

The authors thank Prof. M.A. Baykal from Gedik University for providing the experimental drag values of a model ship given in Fig. 17 . This study was carried out as a part of Süleyman Duman's doctoral thesis. He is supported by the Scientific and Technological Research Council of Turkey (TÜBİTAK) under the national doctoral scholarship 2211/A and by ITU Project Unit (ITU-BAP, Project No: 42196 ). The authors thank Prof. M.A. Baykal from Gedik University for providing the experimental drag values of a model ship given in Fig. 17. This study was carried out as a part of S?leyman Duman's doctoral thesis. He is supported by the Scientific and Technological Research Council of Turkey (T?B?TAK) under the national doctoral scholarship 2211/A and by ITU Project Unit (ITU-BAP, Project No: 42196).

Funders	Funder number
Gedik University
ITU-BAP	42196
TÜBİTAK
International Technological University
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu

Keywords

Acceleration
Analytical solution
CFD
Ship manoeuvring
Stopping

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10.1016/j.oceaneng.2021.109428

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title = "Prediction of the acceleration and stopping manoeuvres of a bare hull surface combatant by closed-form solutions and CFD",

abstract = "In this study, the acceleration and stopping manoeuvres of a bare hull surface combatant have practically been predicted by closed-form (analytical) solutions derived from basic mechanical principles. They have also been simulated directly by an unsteady RANS (Reynolds-averaged Navier-Stokes) solver with overset grid structure to compare the results with those of closed-form approaches. A well-known surface combatant model DTMB5415 has been chosen for validation. The instantaneous drag forces of the model ship in the acceleration and stopping manoeuvres have been provided by both CFD and Holtrop's methods. It has been observed that the results by analytical solutions have a good match with those of the manoeuvring simulations based on unsteady RANS solver. Successful predictions have also been made consistent with the results obtained when experimental resistance values are used in analytical solutions. It has been concluded that the closed-form solution methods yield practically satisfactory results in a very short time when a fast resistance prediction method, such as Holtrop's method or CFD, is used.",

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Prediction of the acceleration and stopping manoeuvres of a bare hull surface combatant by closed-form solutions and CFD

Abstract

Bibliographical note

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Keywords

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