An invitation to resolvent analysis
Resolvent analysis is a powerful tool that can reveal the linear amplification mechanisms
between the forcing inputs and the response outputs about a base flow. These mechanisms …
between the forcing inputs and the response outputs about a base flow. These mechanisms …
A database for reduced-complexity modeling of fluid flows
We present a publicly accessible database specifically designed to aid in the conception,
training, demonstration, evaluation, and comparison of reduced-complexity models for fluid …
training, demonstration, evaluation, and comparison of reduced-complexity models for fluid …
Scalable resolvent analysis for three-dimensional flows
Resolvent analysis is a powerful tool for studying coherent structures in turbulent flows.
However, its application beyond canonical flows with symmetries that can be used to …
However, its application beyond canonical flows with symmetries that can be used to …
Flow control of a plunging cylinder based on resolvent analysis
We design an open-loop active flow control for separated flows around a plunging circular
cylinder based on resolvent analysis. The cylinder is plunging at a Strouhal number of 0.36 …
cylinder based on resolvent analysis. The cylinder is plunging at a Strouhal number of 0.36 …
Time-dependent low-rank input–output operator for forced linearized dynamics with unsteady base flows
A Amiri-Margavi, H Babaee - Journal of Fluid Mechanics, 2024 - cambridge.org
Understanding the linear growth of disturbances due to external forcing is crucial for flow
stability analysis, flow control, and uncertainty quantification. These applications typically …
stability analysis, flow control, and uncertainty quantification. These applications typically …
Interpolatory input and output projections for flow control
B Herrmann, PJ Baddoo, STM Dawson… - Journal of Fluid …, 2023 - cambridge.org
Eigenvectors of the observability and controllability Gramians represent responsive and
receptive flow structures that enjoy a well-established connection to resolvent forcing and …
receptive flow structures that enjoy a well-established connection to resolvent forcing and …
Suppression of oscillatory fluid forces in cylinder wake: Optimal jet control position designed through resolvent analysis
The flow around a circular cylinder is a typical case of unstable separated flow, and
controlling its stability has long been a focus of flow control research. This study proposes an …
controlling its stability has long been a focus of flow control research. This study proposes an …
Opposition flow control for reducing skin-friction drag of a turbulent boundary layer
This work explores the dynamic response of a turbulent boundary layer to large-scale
reactive opposition control, at a friction Reynolds number of Re τ≈ 2 240. A surface …
reactive opposition control, at a friction Reynolds number of Re τ≈ 2 240. A surface …
Extending Closed-Loop Control of Two-Dimensional Supersonic Boundary-Layer Instabilities Beyond a Single Operating Point
This paper investigates two control strategies to maintain low perturbation amplitudes of
second Mack mode instabilities in a two-dimensional boundary layer with freestream …
second Mack mode instabilities in a two-dimensional boundary layer with freestream …
Linstab2D: stability and resolvent analysis of compressible viscous flows in MATLAB
We present LinStab2D, an easy-to-use linear stability analysis MATLAB tool capable of
handling complex domains, performing temporal and spatial linear stability, and resolvent …
handling complex domains, performing temporal and spatial linear stability, and resolvent …