Determination of angle of propagation of acoustic radiation in the far field from turbofan inlet using ray acoustics
"The present study uses the method of ray acoustics to predict the principal direction in which acoustic energy is radiated in hydrodynamic far fields from turbofan inlets. Acoustic rays are traced from the inlet to the hydrodynamic far field (distances beyond which inlet flow characteristics become insignificant). The direction of the principal lobe of acoustic radiation associated with a specified spinning mode, for non-uniform velocity fields associated with inlet flows, is approximated by the direction of the group velocity vector of the mode propagating in the duct. Rays in the far field are in the direction of the far field group velocity, and hence in the principal direction of energy radiation. During the current study a substantial effort is made to develop and implement the ray acoustics methodology"--Abstract, leaf ii.
Barker, Clark R.
Mechanical and Aerospace Engineering
M.S. in Mechanical Engineering
University of Missouri--Rolla
vi, 87 leaves
© 1984 Konanur Vishweshwara, All rights reserved.
Thesis - Citation
Library of Congress Subject Headings
Sound -- Transmission
Antenna radiation patterns
Print OCLC #
Link to Catalog Record
Full-text not available: Request this publication directly from Missouri S&T Library or contact your local library.http://laurel.lso.missouri.edu:80/record=b2693330~S5
Vishweshwara, Konanur, "Determination of angle of propagation of acoustic radiation in the far field from turbofan inlet using ray acoustics" (1984). Masters Theses. 4538.