A hybrid model for the acoustic response of a two-dimensional rough surface to an impulse incident from a refracting medium

2003 ◽  
Vol 64 (7) ◽  
pp. 655-668 ◽  
Author(s):  
Jorge C. Novarini ◽  
Richard S. Keiffer ◽  
Guy V. Norton
Keyword(s):  
Rough Surface ◽  
Hybrid Model ◽  
Two Dimensional ◽  
Acoustic Response

scholarly journals Subgap in the Edge States of Two-Dimensional Chiral Superconductor with Rough Surface

2011 ◽  
Vol 80 (11) ◽  
pp. 113706 ◽  
Author(s):  
Yasushi Nagato ◽  
Seiji Higashitani ◽  
Katsuhiko Nagai
Keyword(s):  
Rough Surface ◽  
Two Dimensional ◽  
Edge States

A unified theory of surface roughness

1984 ◽  
Vol 393 (1804) ◽  
pp. 133-157 ◽  
Keyword(s):  
Surface Roughness ◽  
Rough Surface ◽  
Random Noise ◽  
Sampling Interval ◽  
The Other ◽  
Real Surface ◽  
Unified Theory ◽  
Two Dimensional ◽  
Minor Degree ◽  
A Minor

The properties of the peaks and summits of a rough surface are predicted on the assumption that the surface is two-dimensional random noise. The important result is that, in non-dimensional form, the answers depend only to a minor degree on the parameters describing the surface or on the sampling interval used: on the other hand the absolute values are strongly dependent on the sampling interval. Experimental results on a real surface agree remarkably well with the predictions.

scholarly journals Two-dimensional resonators with small openings

1982 ◽  
Vol 24 (1) ◽  
pp. 2-27 ◽  
Author(s):  
G. R. Bigg ◽  
E. O. Tuck
Keyword(s):  
Natural Frequency ◽  
Asymptotic Expansions ◽  
Velocity Potential ◽  
Low Frequency ◽  
Matched Asymptotic Expansions ◽  
Two Dimensional ◽  
Acoustic Response ◽  
Closed Cavity ◽  
Small Opening

AbstractThe acoustic response of a two-dimensional nearly-closed cavity to an excitation through a small opening is examined, using the method of matched asymptotic expansions. The Helmholtz mode of vibration is discussed using a low-frequency expansion of the velocity potential in the cavity interior. The variation in frequency and magnitude of the resonator response is explored, both for the Helmholtz and the natural-frequency modes.

Sign in / Sign up

Export Citation Format

Share Document