Resistance and propulsion performance of an underwater vehicle estimated by a CFD method and experiment

Yoshiki Nishi, Masashi Kashiwagi, Wataru Koterayama, Masahiko Nakamura, Soo Zi Hua Samuel, Ikuo Yamamoto, Tadahiro Hyakudome

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Citations (Scopus)

Abstract

To develop an underwater vehicle with better propulsion performance allowing long-time observations in the ocean, the resistance force acting on the vehicle is accurately estimated using computational fluid dynamics (CFD) and experiments in a towing tank. The flow around the body is simulated by a commercial CFD code (STAR-CD), and actuation of the thruster is modeled by a simplified propeller theory. The two-way coupling between the flow and the thruster is treated with an iteration scheme to satisfy the condition of equilibrium between the resistance and the thrust. For validation of the numerical method, the resistance computed is compared to the one measured by the experiment, which turns out to be good in agreement. In addition, the optimization of the body shape for less resistance is studied by considering several body shapes with their self-propulsion factors taken into account.

Original languageEnglish
Title of host publicationProceedings of The Seventeenth 2007 International Offshore and Polar Engineering Conference, ISOPE 2007
Pages2045-2052
Number of pages8
Publication statusPublished - Dec 3 2007
Event17th 2007 International Offshore and Polar Engineering Conference, ISOPE 2007 - Lisbon, Portugal
Duration: Jul 1 2007Jul 6 2007

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Other

Other17th 2007 International Offshore and Polar Engineering Conference, ISOPE 2007
CountryPortugal
CityLisbon
Period7/1/077/6/07

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

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    Nishi, Y., Kashiwagi, M., Koterayama, W., Nakamura, M., Samuel, S. Z. H., Yamamoto, I., & Hyakudome, T. (2007). Resistance and propulsion performance of an underwater vehicle estimated by a CFD method and experiment. In Proceedings of The Seventeenth 2007 International Offshore and Polar Engineering Conference, ISOPE 2007 (pp. 2045-2052). (Proceedings of the International Offshore and Polar Engineering Conference).