[HTML][HTML] Novel methods for reliability study of multi-dimensional non-linear dynamic systems

O Gaidai, J Xu, P Yan, Y Xing, K Wang, Z Liu - Scientific Reports, 2023 - nature.com
This research presents two unique techniques for engineering system reliability analysis of
multi-dimensional non-linear dynamic structures. First, the structural reliability technique …

Non-homogeneous analysis of rogue wave probability evolution over a shoal

S Mendes, A Scotti, M Brunetti… - Journal of Fluid …, 2022 - cambridge.org
Non-equilibrium evolution of wave fields, as occurring over sudden bathymetry variations,
can produce rogue seas with anomalous wave statistics. We handle this process by …

Evaluating areal windspeeds and wave heights by gaidai risk evaluation method

O Gaidai, J Sheng, Y Cao, Y Zhu, Z Liu - Natural Hazards Review, 2024 - ascelibrary.org
This study presents a state-of-the-art risk evaluation approach, designed for spatiotemporal
multivariate environmental dynamic wind-wave systems, being either measured or Monte …

Statistical properties of wave kinematics in long-crested irregular waves propagating over non-uniform bathymetry

C Lawrence, K Trulsen, O Gramstad - Physics of Fluids, 2021 - pubs.aip.org
Experimental and numerical evidence have shown that nonuniform bathymetry may alter
significantly the statistical properties of surface elevation in irregular wave fields. The …

Saturation of rogue wave amplification over steep shoals

S Mendes, J Kasparian - Physical Review E, 2022 - APS
Shoaling surface gravity waves induce rogue wave formation. Though commonly reduced to
water waves passing over a step, nonequilibrium physics allows finite slopes to be …

Extreme wave statistics of surface elevation and velocity field of gravity waves over a two-dimensional bathymetry

C Lawrence, K Trulsen, O Gramstad - Journal of Fluid Mechanics, 2022 - cambridge.org
This paper presents the effects of two-dimensional bathymetry on the evolution of skewness
and kurtosis of the surface elevation and velocity field in long-crested irregular waves …

Non-homogeneous approximation for the kurtosis evolution of shoaling rogue waves

S Mendes, J Kasparian - Journal of Fluid Mechanics, 2023 - cambridge.org
Bathymetric changes have been experimentally shown to affect the occurrence of rogue
waves. We recently derived a non-homogeneous correction to the spectral analysis …

On the behavior of higher harmonics in the evolution of nonlinear water waves in the presence of abrupt depth transitions

Q Wu, X Feng, Y Dong, F Dias - Physics of Fluids, 2023 - pubs.aip.org
The presence of abrupt depth transitions might trigger strong nonlinear effects on
propagating water waves near coastal regions. In this study, the dynamics of nonlinear …

Applying the multivariate Gaidai reliability method in combination with an efficient deconvolution scheme to prediction of extreme ocean wave heights

O Gaidai, Y Cao, F Wang, Y Zhu - Marine Systems & Ocean Technology, 2024 - Springer
Current study applies novel Gaidai risks assessment approach that, may be utilized for wave
heights spatiotemporal analysis, hence advancing studies of the effects of climate change …

Hamilton's principle with phase changes and conservation principles for moist potential vorticity

P Kooloth, LM Smith… - Quarterly Journal of the …, 2023 - Wiley Online Library
Many definitions of moist potential vorticity (PV) have been proposed to extend the dry
theory of Ertel PV. None of the moist PV definitions seem to have all of the desirable …