Accession Number : AD0476418

Title :   MECHANISM OF NOISE GENERATION IN THE TURBULENT BOUNDARY LAYER,

Corporate Author : ADVISORY GROUP FOR AERONAUTICAL RESEARCH AND DEVELOPMENT PARIS (FRANCE)

Personal Author(s) : Laufer, John ; Williams, John E. Ffowcs ; Childress, Stephen

Report Date : NOV 1964

Pagination or Media Count : 78

Abstract : The first chapter briefly states the problem and gives its historical development; the second reviews some basic notions of classical acoustics with special emphasis on the sound field produced by elementary sound sources, while the third one contains the generalized wave equation governing the pressure field radiated by nonuniform nonstationary flow. Subsequent chapters describe the methods proposed by the various authors for finding a solution to the radiation problem. The experimental approach is discussed. (Author)

Descriptors :   *TURBULENT BOUNDARY LAYER, *FLOW NOISE, ACOUSTICS, NUMERICAL ANALYSIS, AERODYNAMICS, AERODYNAMIC CHARACTERISTICS, GAS FLOW, VELOCITY, SUPERSONIC CHARACTERISTICS, WAVE FUNCTIONS, MECHANICAL WAVES, FLUID MECHANICS.

Subject Categories : Fluid Mechanics
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE