59 citations · 97 across the 9 of their papers we have counts for
9 papers
Interfacial dynamics and energy cascade in immiscible Rayleigh-Taylor turbulence
Dongxiao Zhao, Xiaoxue Huang, Gaojin Li
We investigate interfacial dynamics and multiscale energy transfer in immiscible Rayleigh-Taylor turbulence using numerical simulations with varying surface tension coefficients $σ…
Emergence of a Flow-Assisted Casting Strategy for Olfactory Navigation via Memory-Augmented Reinforcement Learning
Changxu Zhao, Dongxiao Zhao, Xin Bian +1
In dynamic flow fields, various animals exhibit remarkable odor search capabilities despite relying on stochastic detections. Interestingly, there exists an optimal time window for…
Effects of External Magnetic Fields on the Multi-mode Rayleigh-Taylor Instability
Xin Bian, Riccardo Betti, Dongxiao Zhao +1
The magneto-Rayleigh-Taylor instability (mRTI) is a key process in inertial confinement fusion and is thought to be widespread in the interstellar medium, where it can concentrate…
Calculating Spectra by Sequential High-Pass Filtering
Dongxiao Zhao, Hussein Aluie
We expand on the method of sequential filtering for calculating spectra of inhomogeneous fields. Sadek & Aluie [Phys. Rev. Fluids, 3, 124610 (2018)] showed that the kernel has to h…
Measuring Scale-dependent Shape Anisotropy by Coarse-Graining: Application to Inhomogeneous Rayleigh-Taylor Turbulence
Dongxiao Zhao, Hussein Aluie
We generalize the `filtering spectrum' [1] to probe scales along different directions by spatial coarse-graining. This multi-dimensional filtering spectrum quantifies the spectral…
Effective Drift Velocity from Turbulent Transport by Vorticity
Hussein Aluie, Shikhar Rai, Hao Yin +5
We highlight the differing roles of vorticity and strain in the transport of coarse-grained scalars at length-scales larger than by smaller scale (subscale) turbulence. %sub…
Scale interactions and anisotropy in Rayleigh-Taylor turbulence
Dongxiao Zhao, Riccardo Betti, Hussein Aluie
We study energy scale-transfer in Rayleigh-Taylor (RT) flows by coarse-graining in physical space without Fourier transforms, allowing scale analysis along vertical direction. Two…
Revisiting the Late-Time Growth of Single-mode Rayleigh-Taylor Instability and the Role of Vorticity
Xin Bian, Hussein Aluie, Dongxiao Zhao +2
Growth of the single-fluid single-mode Rayleigh-Taylor instability (RTI) is revisited in 2D and 3D using fully compressible high-resolution simulations. We conduct a systematic ana…
Inviscid Criterion for Decomposing Scales
Dongxiao Zhao, Hussein Aluie
The proper scale decomposition in flows with significant density variations is not as straightforward as in incompressible flows, with many possible ways to define a `length-scale.…