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Closed-loop turbulence control: Progress and challenges
Closed-loop turbulence control is a critical enabler of aerodynamic drag reduction, lift
increase, mixing enhancement, and noise reduction. Current and future applications have …
increase, mixing enhancement, and noise reduction. Current and future applications have …
[کتاب][B] Data-driven fluid mechanics: combining first principles and machine learning
MA Mendez, A Ianiro, BR Noack, SL Brunton - 2023 - books.google.com
Data-driven methods have become an essential part of the methodological portfolio of fluid
dynamicists, motivating students and practitioners to gather practical knowledge from a …
dynamicists, motivating students and practitioners to gather practical knowledge from a …
The need for a pressure-term representation in empirical Galerkin models of incompressible shear flows
Low-dimensional empirical Galerkin models are developed for spatially evolving laminar
and transitional shear layers, based on a Karhunen–Loève decomposition of …
and transitional shear layers, based on a Karhunen–Loève decomposition of …
Vortex dynamics models in flow control problems
B Protas - Nonlinearity, 2008 - iopscience.iop.org
In this article we review the state of the art in the field of control of vortex dynamics. We focus
on problems governed by two-dimensional incompressible Euler equations in domains both …
on problems governed by two-dimensional incompressible Euler equations in domains both …
Quantifying fluid mixing with the Shannon entropy
We introduce a methodology to quantify the quality of mixing in various systems, including
polymeric ones, by adapting the Shannon information entropy. For illustrative purposes we …
polymeric ones, by adapting the Shannon information entropy. For illustrative purposes we …
Ecological implications of eddy retention in the open ocean: a Lagrangian approach
The repartition of tracers in the ocean's upper layer on the scale of a few tens of kilometres is
largely determined by the horizontal transport induced by surface currents. Here we …
largely determined by the horizontal transport induced by surface currents. Here we …
Two-dimensional time-dependent vortex regions based on the acceleration magnitude
Acceleration is a fundamental quantity of flow fields that captures Galilean invariant
properties of particle motion. Considering the magnitude of this field, minima represent …
properties of particle motion. Considering the magnitude of this field, minima represent …
Linear feedback stabilization of laminar vortex shedding based on a point vortex model
B Protas - Physics of Fluids, 2004 - pubs.aip.org
In this paper we use the Föppl point vortex system as a reduced-order model for stabilization
of the steady symmetric solution in an unstable laminar wake. The downstream location of …
of the steady symmetric solution in an unstable laminar wake. The downstream location of …
[HTML][HTML] Fast fluid heating by adaptive flow reorientation
Transport of scalar quantities such as eg heat or chemical species in laminar flows is key to
many industrial activities and stirring of the fluid by flow reorientation is a common way to …
many industrial activities and stirring of the fluid by flow reorientation is a common way to …
Feasibility, efficiency and transportability of short-horizon optimal mixing protocols
We consider, as a case study, the optimization of mixing protocols for a two-dimensional,
piecewise steady, nonlinear flow, the sine flow, for both the advective–diffusive and purely …
piecewise steady, nonlinear flow, the sine flow, for both the advective–diffusive and purely …