The effect of steady flow potential on the ship motions in waves

M. C. Fang, P. Y. Liao

研究成果: Conference contribution

摘要

A three-dimensional method for predicting the motions of a ship running in waves is presented. Basically the method developed here is based on the source distribution technique and the general formulations include the effect of steady flow and unsteady flow. Three algorithms are used for treating the corresponding Green functions and derivatives, i.e. (1) The Hess and Smith algorithm for the part of simple source l/r. (2) The complex plane contour integral of Shen and Farell algorithm for the Double integral of steady flow. (3) The series expansions of Telste and Noblesse algorithm for the Cauchy principal value integral of unsteady flow. The steady flow potential is especially considered in the calculations of diffraction and radiation problems, and effects on ship motions are discussed. The results indicate that the effect of steady flow is generally small, but still cannot be neglected in some cases especially for long waves. It is also interesting to find that the steady flow effect depends on the fore-aft configuration of the ship.

原文English
主出版物標題Proceedings of the 1999 Ninth International Offshore and Polar Engineering Conference (Volume 3), Brest, France, 30 May - 4 June 1999
編輯J S Chung, M Olagnon, C H Kim, A Francescutto, J S Chung, M Olagnon, C H Kim, A Francescutto
發行者International Society of Offshore and Polar Engineers
頁面621-628
頁數8
ISBN(列印)1880653427
出版狀態Published - 1999 十二月 1
事件Proceedings of the 1999 Ninth International Offshore and Polar Engineering Conference - Brest, France
持續時間: 1999 五月 301999 六月 4

Other

OtherProceedings of the 1999 Ninth International Offshore and Polar Engineering Conference
國家France
城市Brest
期間99-05-3099-06-04

    指紋

All Science Journal Classification (ASJC) codes

  • Earth and Planetary Sciences(all)
  • Engineering(all)
  • Environmental Science(all)

引用此

Fang, M. C., & Liao, P. Y. (1999). The effect of steady flow potential on the ship motions in waves. 於 J. S. Chung, M. Olagnon, C. H. Kim, A. Francescutto, J. S. Chung, M. Olagnon, C. H. Kim, & A. Francescutto (編輯), Proceedings of the 1999 Ninth International Offshore and Polar Engineering Conference (Volume 3), Brest, France, 30 May - 4 June 1999 (頁 621-628). International Society of Offshore and Polar Engineers.