33 citations · 104 across the 19 of their papers we have counts for
19 papers
Kolmogorov scale in turbulence of surface gravity waves
Zhou Zhang, Yulin Pan
In this paper, we study the analogue of the Kolmogorov scale in surface gravity wave turbulence, characterized by the cutoff wavenumber at which the power-law inertial range…
Variational Goal-Oriented Optimal Experimental Design for Mixed-Distribution Quantities of Interest: Application to Ship Roll Safety
Chen Cheng, Xun Huan, Yulin Pan
Goal-oriented optimal experimental design (GO-OED) selects experiments according to the expected information gain (EIG) about a quantity of interest (QoI) rather than the full para…
A generalized likelihood-weighted optimal sampling algorithm for rare-event probability quantification
Xianliang Gong, Yulin Pan
In this work, we introduce a new acquisition function for sequential sampling to efficiently quantify rare-event statistics of an input-to-response (ItR) system with given input pr…
CFD-based Design Optimization of Ducted Hydrokinetic Turbines
Jeongbin Park, Bradford G. Knight, Yingqian Liao +6
Hydrokinetic turbines extract kinetic energy from moving water to generate renewable electricity, thus contributing to sustainable energy production and reducing reliance on fossil…
On the time scales of spectral evolution of nonlinear waves
Ashleigh Simonis, Alexander Hrabski, Yulin Pan
As presented in Annenkov & Shrira (2009), when a surface gravity wave field is subjected to an abrupt perturbation of external forcing, its spectrum evolves on a ``fast'' dynamic t…
Energy cascade in the Garrett-Munk spectrum of internal gravity waves
Yue Wu, Yulin Pan
We study the spectral energy transfer due to wave-triad interactions in the Garrett-Munk spectrum of internal gravity waves (IGWs) based on a numerical evaluation of the collision…
Probing the Nonlinear Interactions of Supertidal Internal Waves using a High-Resolution Regional Ocean Model
Joseph Skitka, Brian K. Arbic, Ritabrata Thakur +5
The internal-wave (IW) continuum of a regional ocean model is studied in terms of the vertical spectral kinetic-energy (KE) fluxes and transfers at high vertical wavenumbers. Previ…
An adaptive multi-fidelity sampling framework for safety analysis of connected and automated vehicles
Xianliang Gong, Shuo Feng, Yulin Pan
Testing and evaluation are expensive but critical steps in the development of connected and automated vehicles (CAVs). In this paper, we develop an adaptive sampling framework to e…
Breather Solutions to a Two-dimensional Nonlinear Schrödinger Equation with Non-local Derivatives
Alexander Hrabski, Yulin Pan
We consider the nonlinear Schrödinger equation with non-local derivatives in a two-dimensional periodic domain. For certain orders of derivatives, we find a new type of breather so…
Effects of varying initial conditions of ship encountering wave groups in computing extreme motion statistics
Xianliang Gong, Yulin Pan
In computing ship motion statistics (e.g., exceeding probability) in an irregular wave field, it is a common practice to represent the irregular waves by a large number of wave gro…
Efficient computation of temporal exceeding probability of ship responses in a random wave field
Xianliang Gong, Katerina Siavelis, Zhou Zhang +1
In this work, we develop a computational framework to efficiently quantify the temporal exceeding probability of ship responses in a random wave field, i.e., the fraction of time t…
Do surface gravity waves have a frozen turbulence state?
Zhou Zhang, Yulin Pan
We study the energy transfer by exact resonances for surface gravity waves in a finite periodic spatial domain. Based on a kinematic model simulating the generation of active wave…
Multi-fidelity Bayesian experimental design to quantify extreme-event statistics
Xianliang Gong, Yulin Pan
In this work, we develop a multi-fidelity Bayesian experimental design framework to efficiently quantify the extreme-event statistics of an input-to-response (ItR) system with give…
Effects of microplastics and surfactants on surface roughness of water waves
Yukun Sun, Christopher Ruf, Thomas Bakker +1
In this paper, we study the flow physics underlying the recently developed remote sensing capability of detecting oceanic microplastics, which is based on the measurable surface ro…
On the Properties of Energy Flux in Wave Turbulence
Alexander Hrabski, Yulin Pan
We study the properties of energy flux in wave turbulence via the Majda-McLaughlin-Tabak (MMT) equation with a quadratic dispersion relation. One of our purposes is to resolve the…
Full Resolution of Extreme Ship Response Statistics
Xianliang Gong, Zhou Zhang, Kevin J. Maki +1
We consider the statistics of extreme ship motions in a nonlinear irregular wave field. While an accurate computation is possible by using a full Monte-Carlo method to cover all in…
Numerical investigation of turbulence of surface gravity waves
Zhou Zhang, Yulin Pan
In this paper, we numerically study the wave turbulence of surface gravity waves in the framework of Euler equations of the free surface. The purpose is to understand the variation…
Sequential Bayesian experimental design for estimation of extreme-event probability in stochastic dynamical systems
Xianliang Gong, Yulin Pan
We consider an input-to-response (ItR) system characterized by (1) parameterized input with a known probability distribution and (2) stochastic ItR function with heteroscedastic ra…
Phase-resolved ocean wave forecast with ensemble-based data assimilation
Guangyao Wang, Yulin Pan
Through ensemble-based data assimilation (DA), we address one of the most notorious difficulties in phase-resolved ocean wave forecast, regarding the deviation of numerical solutio…