65 citations · 104 across the 9 of their papers we have counts for
6 papers · 1 filter
Predictability of weakly turbulent systems from spatially sparse observations using data assimilation and machine learning
Vikrant Gupta, Yuanqing Chen, Minping Wan
We apply two data assimilation (DA) methods, a smoother and a filter, and a model-free machine learning (ML) shallow network to forecast two weakly turbulent systems. We analyse th…
Resolvent analysis for predicting energetic structures in the far wake of a wind turbine
Dachuan Feng, Vikrant Gupta, Larry K. B. Li +1
A thorough understanding of the energetic flow structures that form in the far wake of a wind turbine is essential for accurate turbine wake modeling and wind farm performance esti…
Transition from turbulence-dominated to instability-dominated combustion regime in lean hydrogen-air flames
Hsu Chew Lee, Peng Dai, Minping Wan +2
Recent complex-chemistry direct numerical simulations of lean hydrogen-air flames propagating in forced turbulence in a box were continued by switching-off the turbulence forcing.…
Turbulent burning velocity and thermo-diffusive instability of premixed flames
HsuChew Lee, BuChen Wu, Peng Dai +2
Reported in the paper are results of unsteady three-dimensional direct numerical simulations of laminar and turbulent, lean hydrogen-air, complex-chemistry flames propagating in fo…
Energy transfer and third-order law in forced anisotropic MHD turbulence with hyperviscosity
Bin Jiang, Cheng Li, Yan Yang +4
The Kolmogorov-Yaglom (third-order) law, links energy transfer rates in the inertial range of magneto-hydrodynamic (MHD) turbulence with third-order structure functions. Anisotropy…
Non-equilibrium time-relaxation kinetic model for compressible turbulence modeling
Guiyu Cao, Liang Pan, Kun Xu +2
For the first time, the non-equilibrium time-relaxation kinetic model (NTRKM) is proposed for compressible turbulence modeling on unresolved grids. Within the non-equilibrium time-…