Use of eddy viscosity in resolvent analysis of turbulent channel flow
The predictions obtained from resolvent analysis with and without an eddy viscosity model
for turbulent channel flow at Re τ= 550 are compared to direct numerical simulation data to …
for turbulent channel flow at Re τ= 550 are compared to direct numerical simulation data to …
Study of the linear models in estimating coherent velocity and temperature structures for compressible turbulent channel flows
Linear models, based on stochastically forced linearized equations, are deployed for
spectral linear stochastic estimation (SLSE) of the velocity and temperature fluctuations in …
spectral linear stochastic estimation (SLSE) of the velocity and temperature fluctuations in …
Mean flow data assimilation based on physics-informed neural networks
Physics-informed neural networks (PINNs) can be used to solve partial differential equations
(PDEs) and identify hidden variables by incorporating the governing equations into neural …
(PDEs) and identify hidden variables by incorporating the governing equations into neural …
On the role of eddy viscosity in resolvent analysis of turbulent jets
This study presents an approach to investigate the role of eddy viscosity in linearized mean-
field analysis of broadband turbulent flows. The procedure is based on spectral proper …
field analysis of broadband turbulent flows. The procedure is based on spectral proper …
Linear amplification of inertial-wave-driven swirl fluctuations in turbulent swirling pipe flows: a resolvent analysis approach
This paper investigates the amplification and propagation of swirl fluctuations in turbulent
swirling flows using resolvent analysis. Swirl fluctuations have been repeatedly observed in …
swirling flows using resolvent analysis. Swirl fluctuations have been repeatedly observed in …
Data assimilation and linear analysis with turbulence modelling: application to airfoil stall flows with PIV measurements
A combined data-assimilation and linear mean-flow analysis approach is developed to
estimate coherent flow fluctuations from limited mean-flow measurements. It also involves …
estimate coherent flow fluctuations from limited mean-flow measurements. It also involves …
Self-consistent closure modeling for linearized mean field methods
View Video Presentation: https://doi. org/10.2514/6.2023-4351. vid Modeling the coherent
component of the Reynolds stresses to close the linearized mean field equations has …
component of the Reynolds stresses to close the linearized mean field equations has …