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Towards real-time reconstruction of velocity fluctuations in turbulent channel flow

Rahul Arun, H. Jane Bae, Beverley McKeon

2023Physical Review Fluids16 citationsDOI

Abstract

We develop an efficient streaming framework to reconstruct turbulent velocity fluctuations from limited measurements with the potential for real-time implementation. This is achieved by introducing techniques to efficiently compute linear estimators and recursively update streaming measurements in the frequency domain. For flow in a minimal channel, the reconstructions capture dominant flow features and have computation times consistent with requirements for real-time experiments.

Topics & Concepts

EstimatorTurbulenceComputationChannel (broadcasting)Flow (mathematics)Computer scienceFrequency domainAlgorithmChézy formulaOpen-channel flowTime domainMathematicsMechanicsPhysicsTelecommunicationsComputer visionStatisticsFluid Dynamics and Turbulent FlowsModel Reduction and Neural NetworksAerodynamics and Acoustics in Jet Flows
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