88 citations · 137 across the 17 of their papers we have counts for
17 papers
Optimization-Based Discovery of A Non-Attracting Flow State in An Oscillating-Cylinder Wake
Daiwei Dong, Wenbo Cao, Wei Suo +2
In the flow past a stationary circular cylinder, the classical Karman vortex street arises from a Hopf bifurcation of the steady flow at the critical Reynolds number. Although this…
A High-Order Immersed Boundary Method for Fluid-Structure Interaction Problems
Yingjie Xia, Stefano Colombo, David Huergo +3
Accurate and efficient simulation of fluid-structure interaction (FSI) problems remains a central challenge in computational physics. High-order discontinuous Galerkin (DG) methods…
Goal-oriented Feature Extraction: a novel approach for enhancing data-driven surrogate model
Xu Wang, Ruiqi Huang, Jiaqing Kou +2
Surrogate model can replace the parametric full-order model (FOM) by an approximation model, which can significantly improve the efficiency of optimization design and reduce the co…
PINN-MG: A Multigrid-Inspired Hybrid Framework Combining Iterative Method and Physics-Informed Neural Networks
Daiwei Dong, Wei Suo, Jiaqing Kou +1
Iterative methods are widely used for solving partial differential equations (PDEs). However, the difficulty in eliminating global low-frequency errors significantly limits their c…
A combined volume penalization / selective frequency damping approach for immersed boundary methods: application to moving geometries
Jiaqing Kou, Esteban Ferrer
This work extends, to moving geometries, the immersed boundary method based on volume penalization and selective frequency damping approach [J. Kou, E. Ferrer, A combined volume pe…
A modified equation analysis for immersed boundary methods based on volume penalization: applications to linear advection-diffusion and high-order discontinuous Galerkin schemes
Victor J. Llorente, Jiaqing Kou, Eusebio Valero +1
The Immersed Boundary Method (IBM) is a popular numerical approach to impose boundary conditions without relying on body-fitted grids, thus reducing the costly effort of mesh gener…