3 papers
physics.flu-dyn2026
Tracking the boundary between absolute/convective instability using adjoint equations
Yue Xiao, Hui Li, Zijing Ding
Determining absolute/convective instability boundaries conventionally requires repeated saddle searches in the complex-wavenumber plane and a subsequent scan of the physical parame…
physics.flu-dyn2026
Optimal heat transport at the edge of energy stability
Zijing Ding, Baole Wen, Hui Li
High heat transfer in Rayleigh--Bénard convection is commonly associated with vigorous turbulent motion, but turbulence intensity alone does not explain how a limiting transport st…
astro-ph.SR2024
Spatio-Temporal Energy Cascade in Three-Dimensional Magnetohydrodynamic Turbulence
Giuseppe Arrò, Hui Li, William H. Matthaeus
We present a new scale decomposition method to investigate turbulence in wavenumber-frequency space. Using 3D magnetohydrodynamic turbulence simulations, we show that magnetic fluc…