Abstract
The Defense Advanced Research Projects Agency (DARPA) Suboff Submarine propelled by the Italian Ship Model Basin (INSEAN) E1619 propeller is extensively used in submarine validation studies. Although there are several numerical studies where the DARPA Suboff submarine is used in combination with E1619 propeller there are no experimental data available in open literature for the self-propulsion condition. In this article, the self-propulsion characteristics of the DARPA Suboff submarine model with INSEAN E1619 propeller obtained with experimental and numerical methods are presented and discussed by means of Taylor wake fraction, thrust deduction, hull efficiency, relative rotative efficiency, and propulsive efficiency. To experimentally investigate the submarine form, a self-propulsion experimental setup is designed and manufactured. Resistance and self-propulsion experiments are conducted in Istanbul Technical University Ata Nutku Ship Model Testing Laboratory. Resistance tests are carried out for three different speeds, and the results show good agreement with the published experimental results. Propulsion tests are conducted by using the load-varying self-propulsion test method for constant speed and seven different propeller rotation rates. Rotational speed, thrust, and torque forces at self-propulsion point are investigated. For the numerical computations a commercial Computational Fluid Dynamics (CFD) code is used. Propeller open water characteristics and nondimensional velocities behind the propeller are calculated. Self-propulsion point of the submarine and propeller assembly is also solved numerically and the results are compared with the results obtained from the experiments, and it is seen that especially the propeller rate of revolution and thrust force are predicted with very good approximation.
| Original language | English |
|---|---|
| Pages (from-to) | 235-250 |
| Number of pages | 16 |
| Journal | Journal of Ship Research |
| Volume | 63 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2019 |
Bibliographical note
Publisher Copyright:© 2019 Society of Naval Architects and Marine Engineers. All rights reserved.
Funding
This research was supported by the Yıldız Technical University Scientific Research Projects Coordination Department. Project number: 2015-10-01-DOP01. This research was supported by the Y?ld?z Technical University Scientific Research Projects Coordination Department. Project number: 2015-10-01-DOP01. Experimental studies concerning propeller–hull interaction on submarines are rather limited. For example, the Ocean Engineering Research Center (OERC) and the Marine Science Research Center of Newfoundland Memorial University initiated the Autonomous Underwater Vehicle (AUV) C-Scout Project in 2002 with the support of some private companies and universities. Within the scope of this project, a torpedo-shaped underwater vehicle with a length of 2.70 m and a diameter of .40 m was designed and the resistance and propulsion tests of this vehicle were carried out in the towing tank of the OERC (Thomas 2003; Thomas et al. 2003). Carrica et al. (2016) conducted the self-propulsion experiments of
| Funders | Funder number |
|---|---|
| Marine Science Research Center of Newfoundland Memorial University initiated the Autonomous Underwater Vehicle | |
| Y?ld?z Technical University | 2015-10-01-DOP01 |
| Yıldız Technical University Scientific Research Projects Coordination Department |
Keywords
- CFD
- DARPA Suboff
- E1619
- EFD
- Propeller
- Self propulsion
- Submarine