Noise Mitigation of a Supersonic Jet Using Shear Layer Swirl

Abstract

Explore a promising technology of using swirl inducing vanes to achieve significant engine noise reduction levels (3+ dB) for legacy engines. Test influence of vane location, swirl angle, and blockage effect on jet flow-field and acoustic signature. Validate and verify computational and experimental testing procedures to ensure high confidence in results. Establish thrust differentials for the vaned nozzle configurations. The ultimate objective is to achieve substantial noise reduction at full-scale, at full power

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Document Details

Document Type
Technical Report
Publication Date
Feb 18, 2020
Accession Number
AD1135545

Entities

People

  • Blake Hartwell
  • Bradley Collicott
  • Charlie Zheng
  • Cody Hill
  • Huixuan Wu
  • Josiah Swim
  • Justin Phommachanh
  • Meihua Zhang
  • Mohamad Alhawwary
  • Ray Taghavi
  • Robert Dougherty
  • Saeed Farokhi
  • Salman Rahmani
  • Z. J. Wang

Organizations

  • University of Kansas

Tags

DTIC Thesaurus Topics

  • Acoustic Signatures
  • Classification
  • Department Of Defense
  • Engine Noise
  • Flow
  • Flow Fields
  • Instructions
  • Jet Flow
  • Noise
  • Noise Reduction
  • Security

Fields of Study

  • Physics

Readers

  • Acoustics.
  • Aerodynamics.
  • Fluid Mechanics and Fluid Dynamics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow