Collaborative Theoretical and Computational Study of Jet Noise Control

Abstract

We report on the development of simulation and data-driven analysis tools for investigating the structure of turbulence and sound in forced high-speed jets. Such techniques are critical for the development of noise reduction strategies for military-style aircraft. Both canonical, axisymmetric geometries and a more complex twin-rectangular jet configuration are considered. Spectral Proper Orthogonal Decomposition is generalized to address time-periodic forced flows, and to exploit the D2-symmetry group associated with the twin-rectangular nozzle. The turbulence structure of these forced flows is then analyzed with the newly developed tools.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2023
Accession Number
AD1213545

Entities

People

  • Guillaume Bres
  • Oliver Schmidt
  • Tim Colonius

Organizations

  • Cadence Design Systems
  • California Institute of Technology
  • University of California, San Diego

Tags

DTIC Thesaurus Topics

  • Acoustics
  • Boundary Layer
  • Computational Fluid Dynamics
  • Computational Science
  • Databases
  • Energy Transfer
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Large Eddy Simulation
  • Mechanical Phenomena
  • Mechanical Properties
  • Physics Laboratories
  • Signal Processing
  • Turbulent Mixing
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Control Systems Engineering.
  • Fluid Dynamics.
  • Robotics and Automation.