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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…