شماره ركورد كنفرانس :
5048
عنوان مقاله :
Computation of first order hydrodynamic loads on a large cylinder in the sea due to combined wave and current, using higher order boundary element method
Author/Authors :
Alireza ،Hossein Nezhad Department of Mech. Eng. - University of Sistan and Baluchestan, Zahedan, Iran , Gholam Hossein ،Akbari Department of Civil Eng. - University of Sistan and Baluchestan, Zahedan, Iran , Mohammed ،Jafarian Department of Mech. Eng. - University of Sistan and Baluchestan, Zahedan, Iran , Mohammed ،Taghavi Department of Mech. Eng. - University of Sistan and Baluchestan, Zahedan, Iran
كليدواژه :
hydrodynamic loads , higher order , boundary element , wave , current
عنوان كنفرانس :
ششمين كنگره بين المللي مهندسي شيمي
چكيده لاتين :
In this paper using higher order boundary element method, we study the first order hydrodynamic loads applied on
a large cylinder in the sea due to combined wave and current. This cylinder is located on the sea bed and pierces free
surface vertically. Assuming potential flow and using HOBEM, as an alternative method, a computer program is
developed to solve first order diffraction equations in the time domain. Maximum 18% difference is observed between
the results of the present work (HOBEM) and constant panel method for the hydrodynamic forces applied to the body.
In HOBEM the surface of the body is discretized with curved elements, which approximate better the surface of the
cylinder, so the present results can be more reliable.
