Acoustic Interaction with a Turbulent Plane Jet.
Abstract
Effects of a transverse acoustic field upon properties of a turbulent plant jet were investigated. The jet Reynolds number was 6000. Mean pressure profiles were measured to determine the jet widening rate, velocity decay rate, and virtual origins for applied pure tone acoustic frequencies of 200 Hz to 4200 Hz. Turbulent intensities, Reynolds shear stresses, and turbulent energy spectra were measured without an acoustic disturbance, and with disturbance frequencies of 700 Hz and 1600 Hz. Intensities were measured along the jet centerline from X/D = 0 to X/D = 80. Spectra were measured in the jet shear layer and along the centerline from X/D = 0 to X/D = 40. Intensities and shear stresses were measured at X/D = 20, 40, and 60 from Y/B = 0 to Y/B = 2. Assumptions of self-similarity were employed in calculations of the mass flow rates, entrainment rates, Reynolds shear stresses, and shear stress turbulent energy production in the main region of the jet.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1977
- Accession Number
- ADA071261
Entities
People
- F. W. Chambers
- Frank Williams
- V. W. Goldschmidt
Organizations
- Purdue University