Computational and Experimental Evaluation of a Complex Inlet Swirl Pattern Generation System (POSTPRINT)

Abstract

An assessment was conducted to determine the suitability of subscale, low-Mach-number, particle image velocimetry (PIV) testing and computational fluid dynamics (CFD) analysis to evaluate swirling flow downstream of a swirl pattern generation system composed of continuous patterns of turning vanes. Successful demonstration of the evaluation methods required acceptable comparison of the PIV and CFD to an independent five-hole probe measurement performed at the design Mach number and full-scale geometry. The focus of the investigation was on direct comparison of flow angles and flow features one diameter downstream of the swirl pattern generator. Both the subscale PIV and the CFD provide adequate representation of the swirling flow produced by the full-scale generator. The subscale PIV and CFD may be used to predict the performance of the full-scale swirl pattern generator and allow for inexpensive testing and analysis to be performed during the design process, thus improving the accuracy of generating a desired swirl pattern.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2016
Accession Number
AD1015151

Entities

People

  • Chase A. Nessler
  • Darius D. Sanders
  • Michael G. List
  • Timothy J. Janczewski
  • William W. Copenhaver

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Computational Fluid Dynamics
  • Computational Science
  • Eddies (Fluid Mechanics)
  • Fluid Dynamics
  • Fluid Flow
  • Generators
  • Geometry
  • Hydrodynamics
  • Mach Number
  • Manufacturing
  • Measurement
  • Propulsion Systems
  • Test And Evaluation
  • Turbines
  • Turbulent Mixing

Fields of Study

  • Engineering

Readers

  • Combustion and Flow Dynamics.
  • Computational Fluid Dynamics (CFD)
  • Fluid Mechanics and Fluid Dynamics.