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Vol 176
Pages:
92-94
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RUS

Influence of complex hydrology on vertical props of submersible and semi-submersible drilling rigs

Authors:
V. V. Vasileva1
T. D. Mordvina2
About authors
  • 1 — St. Petersburg State Marine Technical University
  • 2 — St. Petersburg State Marine Technical University
Date submitted:
2007-09-25
Date accepted:
2007-11-29
Date published:
2008-03-01

Abstract

Quantitative evaluation of the mass-flow effect of seawater with inhomogeneous density upon the vertical cylinders (supports of submersible and semi submersible drilling platforms) has been performed considering water flows, induced superficial and internal waves. Calculated results are compared with experimental data obtained previously in the basin with stratiphied water. The modal structure and amplitude-phase parameters of internal waves generated by a vertical cylinder crossing the free surface and the surface pycnocline are studied as functions of the cylinder velocity and submergence depth relative to a density jump.

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References

  1. Богатырев С.Д. Экспериментальные исследования вынужденных внутренних волн и сопротивления шара в стратифицированной жидкости / С.Д.Богатырев, В.В.Васильева, О.Д.Шишкина // Повышение эффективности экспериментальных исследований гидродинамики судна для решения проблемных задач в судостроении. Л.: Судостроение, 1991. С.164-170. (Тр. ВНТО им. ак.А.Н.Крылова).
  2. Васильева В.В. Генерация внутренних волн дрейфующим айсбергом / В.В.Васильева, Л.Г.Писаревская, О.Д.Шишкина // Изв. РАН. Физика атмосферы и океана. 1995. Т.31. № 6. С.842-851.
  3. Лаппо Д.Д. Нагрузки и воздействия ветровых волн на гидротехнические сооружения / Д.Д.Лаппо, С.С.Стрекалов, В.К.Завьялов / Всесоюз. науч.-исслед. ин-т гидротехники им. Б.Е.Веденеева. Л., 1990. 432 с.

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