Accession Number : ADA298428

Title :   Comparison between Subsonic Flow Simulation and Physical Measurements of Flue Pipes.

Descriptive Note : Memorandum rept.,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE ARTIFICIAL INTELLIGENCE LAB

Personal Author(s) : Skordos, Panayotis A. ; Sussman, Gerald J.

PDF Url : ADA298428

Report Date : APR 1995

Pagination or Media Count : 8

Abstract : Direct simulations of wind musical instruments using the compressible Navier Stokes equations have recently become possible through the use of parallel computing and through developments in numerical methods. As a first demonstration, the flow of air and the generation of musical tones inside a soprano recorder are simulated numerically. In addition, physical measurements are made of the acoustic signal generated by the recorder at different blowing speeds. The comparison between simulated and physically measured behavior is encouraging and points towards ways of improving the simulations. (AN)

Descriptors :   *COMPUTERIZED SIMULATION, *ACOUSTIC WAVES, *ARTIFICIAL INTELLIGENCE, *SUBSONIC FLOW, MATHEMATICAL MODELS, AIR FLOW, PARALLEL PROCESSING, COMPUTATIONAL FLUID DYNAMICS, FLOW VISUALIZATION, FINITE DIFFERENCE THEORY, COMPRESSIBLE FLOW, ACOUSTIC SIGNALS, TWO DIMENSIONAL FLOW, FLOW NOISE, NUMERICAL METHODS AND PROCEDURES, NAVIER STOKES EQUATIONS, VISCOSITY, ACOUSTIC VELOCITY, BOLTZMANN EQUATION.

Subject Categories : Cybernetics
      Fluid Mechanics
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE