DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click HERE
to register or log in.
Reflection and Transmission at a Plane Screen with Periodically Arranged Circular or Elliptical Apertures.
STANFORD UNIV CALIF DEPT OF MATHEMATICS
Pagination or Media Count:
Theoretical estimates are given for the scattered acoustic wave amplitudes which result if a plane wave is incident on a perforated screen containing a periodic array of circular or elliptical apertures, on the twin assumptions that 1 the wave length greatly exceeds the aperture spacings and 2 the aperture dimensions are small compared to the spacings. The effect of a parallel backing plane is described and the impedance of a plane with a regular array of baffled pistons is calculated. Author
APPROVED FOR PUBLIC RELEASE