TY - GEN

T1 - Statistics of wave orbital velocities in random directional sea states

AU - Alberello, A.

AU - Chabchoub, A.

AU - Gramstad, O.

AU - Babanin, A.

AU - Toffoli, A.

PY - 2014/12

Y1 - 2014/12

N2 - The inclusion of at least the second order nonlinear contribution is necessary to achieve an accurate representation of ocean waves. While this is well known for the surface elevation, the importance of second order nonlinearity on the velocity potential, and hence on the wave kinematics and associated wave loads, is still unclear. To explicitly address the effect of nonlinear contribution on wave velocities Monte-Carlo simulations with a second order wave model are carried out with different initial random conditions. Results show that the statistical distribution of the horizontal components of wave orbital velocity departs substantially from Normality due to second order contributions for both unidirectional and directional wave fields.

AB - The inclusion of at least the second order nonlinear contribution is necessary to achieve an accurate representation of ocean waves. While this is well known for the surface elevation, the importance of second order nonlinearity on the velocity potential, and hence on the wave kinematics and associated wave loads, is still unclear. To explicitly address the effect of nonlinear contribution on wave velocities Monte-Carlo simulations with a second order wave model are carried out with different initial random conditions. Results show that the statistical distribution of the horizontal components of wave orbital velocity departs substantially from Normality due to second order contributions for both unidirectional and directional wave fields.

UR - http://www.scopus.com/inward/record.url?scp=84959136506&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84959136506

T3 - Proceedings of the 19th Australasian Fluid Mechanics Conference, AFMC 2014

BT - Proceedings of the 19th Australasian Fluid Mechanics Conference, AFMC 2014

PB - Australasian Fluid Mechanics Society

T2 - 19th Australasian Fluid Mechanics Conference, AFMC 2014

Y2 - 8 December 2014 through 11 December 2014

ER -