Accession Number : ADA310230

Title :   Estimates of the Wavenumber-Frequency Spectra for the Nonhomogeneous Streamwise Transition Flow Pressure Field.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL UNDERSEA WARFARE CENTER NEWPORT DIV RI

Personal Author(s) : Ochsenknecht, Ronald I.

PDF Url : ADA310230

Report Date : 14 JUN 1996

Pagination or Media Count : 48

Abstract : This research implements computer models to provide unprecedented estimates of the two spectral formats for the stationary, nonhomogeneous, streamwise transitional flow pressure field. Estimates of the space-varying wavenumber-frequency spectrum that reveal components having convective as well as subconvective velocities are presented. These subconvective components are believed to be associated with the leading and trailing edge speed of the turbulent spot generation process. In addition, estimates of the full spectral two wave number-frequency spectrum that are concise and informationally equivalent to the space-varying wavenumber-frequency spectrum are provided.

Descriptors :   *COMPUTERIZED SIMULATION, *FLOW FIELDS, *TRANSITIONS, VELOCITY, FREQUENCY, BOUNDARY LAYER, TURBULENCE, COSTS, CODING, SPECTRA, FORMATS, PRESSURE, SUBSONIC CHARACTERISTICS, LEADING EDGES, TRAILING EDGES.

Subject Categories : Computer Programming and Software
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE