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An empirical model of noise sources in subsonic jets
Ugur Karban, Benjamin Bugeat, Aaron Towne +3
Modelling the noise emitted by turbulent jets is made difficult by their acoustic inefficiency: only a tiny fraction of the near-field turbulent kinetic energy is propagated to the…
A Database for Reduced-Complexity Modeling of Fluid Flows
Aaron Towne, Scott T. M. Dawson, Guillaume A. Brès +8
We present a publicly accessible database designed to aid in the conception, training, demonstration, evaluation, and comparison of reduced-complexity models for fluid mechanics. A…
Space-time POD and the Hankel matrix
Peter Frame, Aaron Towne
Time-delay embedding is an increasingly popular starting point for data-driven reduced-order modeling efforts. In particular, the singular value decomposition (SVD) of a block Hank…
Solutions to aliasing in time-resolved flow data
Ugur Karban, Eduardo Martini, Peter Jordan +2
Avoiding aliasing in time-resolved flow data obtained through high fidelity simulations while keeping the computational and storage costs at acceptable levels is often a challenge.…
Resolvent-based tools for optimal estimation and control via the Wiener-Hopf formalism
Eduardo Martini, Junoh Jung, André V. G. Cavalieri +2
The application of control tools to complex flows frequently requires approximations, such as reduced-order models and/or simplified forcing assumptions, where these may be conside…