6 papers · 1 filter
A total-Lagrangian vectorial lattice Boltzmann method for finite-strain hyperelastic dynamics
Jingsen Feng, Xu Chu
Inspired by the vectorial lattice Boltzmann method for linear elastodynamics \citep{boolakee2025linear}, we construct a total-Lagrangian vectorial lattice Boltzmann formulation for…
Transient and asymptotic Taylor--Aris dispersion of Brownian rods in arbitrary regular-polygonal ducts
Jingsen Feng, Xu Chu
Taylor--Aris dispersion of Brownian rods in non-circular ducts is governed by a coupling absent from passive-scalar theory. Pressure-driven shear aligns the rods and makes translat…
Shear alignment and tensorial Taylor--Aris dispersion of Brownian rods in a circular tube
Jingsen Feng, Xu Chu
Brownian rods disperse in pressure-driven flow through a coupling between axial shear, anisotropic translational diffusion and Jeffery--Brownian rotation. Classical tube Taylor--Ar…
Entropic lattice Boltzmann method for general anisotropic advection--diffusion
Jingsen Feng, Jing Leng, Jingchao Jiang +1
Many transport processes exhibit direction-dependent diffusion, described macroscopically by the full-tensor anisotropic advection--diffusion equation (ADE). Numerical discretizati…
Optimized Flow Control based on Automatic Differentiation in Compressible Turbulent Channel Flows
Wenkang Wang, Xu Chu
This study presents an automatic differentiation (AD)-based optimization framework for flow control in compressible turbulent channel flows. We developed a fully differentiable bou…
JAX-based differentiable fluid dynamics on GPU and end-to-end optimization
Wenkang Wang, Xuanwei Zhang, Deniz Bezgin +3
This project aims to advance differentiable fluid dynamics for hypersonic coupled flow over porous media, demonstrating the potential of automatic differentiation (AD)-based optimi…