Study on hydrodynamic performance of a blended wing body for an underwater glider based on numerical analysis

Satoru Yamaguchi, Yutaro Miyai

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

The authors have been developing an autonomous underwater glider which equips an OBEM (Ocean Bottom Electromagnetometer). That is a hopeful instrument for the ocean floor resources explorations. The autonomous vehicle has an ability to achieve a continuous resource exploration autonomously for a long term. The buoyancy and attitude control mechanism of the vehicle enable to move to the next measurement point by gliding. The vehicle which has a blended wing body measures the slight variation of electromagnet wave on the sea bottom and the landing point for the measurement must be precisely controlled by the motion control system. In the landing stage, it is predicted that surface effect of the sea bottom affects the hydrodynamic characteristics of the vehicle, and it might cause some problems on the motion control system of the vehicle. The authors attempt to make clear the characteristics of the flow field around the vehicle in the vicinity of a sea bottom. The motion control system for landing of the vehicle was investigated in the previous study (Yamaguchi and Sumoto, 2019). In this report, hydrodynamic performance of the vehicle in landing is examined by CFD calculations. The surface effect by a sea bottom which affects the lift and drag of the wings of the glider is studied and the characteristics of the blended wing body near a sea bottom is discussed.

本文言語英語
ホスト出版物のタイトル30th International Ocean and Polar Engineering Conference
出版社International Society of Offshore and Polar Engineers
ページ1222-1228
ページ数7
ISBN(電子版)9781880653845
出版ステータス出版済み - 2020
イベント30th International Ocean and Polar Engineering Conference, ISOPE 2020 - Virtual, Online
継続期間: 10 11 202010 16 2020

出版物シリーズ

名前Proceedings of the International Offshore and Polar Engineering Conference
2020-October
ISSN(印刷版)1098-6189
ISSN(電子版)1555-1792

会議

会議30th International Ocean and Polar Engineering Conference, ISOPE 2020
CityVirtual, Online
Period10/11/2010/16/20

All Science Journal Classification (ASJC) codes

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

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