• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

NUMERICAL AIMULATION OF WAVE IMPACT LOAD ON HIGH SPEED SHIPS

Research Project

Project/Area Number 05650941
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 船舶工学
Research InstitutionYOKOHAMA NATIONAL UNIVERSITY,FACULTY OF ENGINEERING

Principal Investigator

ARAI Makato  YOKOHAMA NATIONAL UNIVERSITY,FACULTY OF ENGINEERING,ASSOCIATE PROFESSOR, 工学部, 助教授 (00232025)

Co-Investigator(Kenkyū-buntansha) INOUE Y  YOKOHAMA NATIONAL UNIVERSITY,FACULTY OF ENGINEERING,PROFESSOR, 工学部, 教授 (60126373)
Project Period (FY) 1993 – 1994
Project Status Completed (Fiscal Year 1994)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1994: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1993: ¥1,700,000 (Direct Cost: ¥1,700,000)
KeywordsWAVE IMPACT LOAD / SLAMMING / HIGH SPEED SHIPS / NUMERICAL SIMULATION / FINITE DIFFERENCE METHOD / 波浪情報 / 数値波動水槽 / 波浪荷重
Research Abstract

In this study, a computing method for water impact of arbitrary shaped bodies is proposed. We use body-fitted coordinate system to model the arbitrary profile of the rigid body surface and the transient deformation of the free surface is solved by the fractional volume of fluid method. With this combination of the numerical techniques the rigid surface and the free surface boundary conditions are naturally treated at the intersection of both surfaces that improves remarkably the stability and accuracy of the numerical simulation.
For the purpose of verifying the present computing method, classical problems of water impact of wedges and circular cylinders are studied. Moreover, water impacts of actual ship bow sections are simulated to illustrate the applicability of the present computing method to practical ship design problems. In these basic studies, we considered the cases in which the body enters an initially calm water surface with a constant velocity. The results of the simulations are examined against the existing analytical theories and published experimental data.
Numerical wave generation technique is also studied for future research on the slamming of high speed vessels in realistic sea ways.

Report

(3 results)
  • 1994 Annual Research Report   Final Research Report Summary
  • 1993 Annual Research Report
  • Research Products

    (15 results)

All Other

All Publications (15 results)

  • [Publications] 荒井誠ほか: "A Technique for Open Boundary Treatment in Numerical Wave Tanks" 日本造船学会論文集. 第173号. 45-50 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 荒井誠ほか: "Wave Generation in 3D Numerical Wave Tanks" 日本造船学会論文集. 第174号. 253-259 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 荒井誠ほか: "数値波動水槽における開境界処理へのニューラル・ネットワークの適用" 関西造船協会誌. 第221号. 71-76 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 荒井誠ほか: "Motion Simulation of Falling Bodies During Water Entry" 関西造船協会誌. 第222号. 149-154 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 荒井誠ほか: "A Computing Method for the Analysis of Water Impact of Arbitrary Shaped Bodies" 日本造船学会論文集. 第176号. 233-240 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 荒井誠ほか: "On the Reduction of Slamming Load by the Improvement of Cross Sectional Shapes of Ship Bows" The proceedings of TEAM‐TAIPEI′94. 83-98 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 荒井誠ほか: "A Technique for Open Boundary Treatment in Numerical Wave Tanks" 日本造船学会論文集. 第173号. 45-50 (1993)

    • Related Report
      1994 Annual Research Report
  • [Publications] 荒井誠ほか: "Wave Generation in 3D Numerical Wave Tanks" 日本造船学会論文集. 第174号. 253-259 (1993)

    • Related Report
      1994 Annual Research Report
  • [Publications] 荒井誠ほか: "数値波動水槽における開境界処理へのニューラル・ネットワークの適用" 関西造船協会誌. 第221号. 71-76 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 荒井誠ほか: "Motion Simulation of Falling Bodies During Water Entry" 関西造船協会誌. 第222号. 149-154 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 荒井誠ほか: "A Computing Method for the Analysis of Water Impact of Arbitrary Shaped Bodies" 日本造船学会論文集. 第176号. 233-240 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 荒井誠ほか: "On the Reduction of Slamming Load by the Improvement of Cross Sectional Shapes of Ship Bows" The proceedings of TEAM-TAIPE'94. 83-98 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] M.Arai et al.: "A Technique for Open Boundary Treatment in Numerical Wave Tanks" 日本造船学会論文集. 第173号. 45-50 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] M.Arai et al.: "Wave Generation in 3D Numerical Wave Tanks" 日本造船学会論文集. 第174号. 253-259 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 荒井 誠 他: "数値波動水槽における開境界処理へのニューラル・ネットワークの適用" 関西造船協会誌. 第221号. (1994)

    • Related Report
      1993 Annual Research Report

URL: 

Published: 1993-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi