Title :
Diffraction by a line of jump of curvature (a special case)
Author :
Kirpichnikova, A.S. ; Philippov, V.B.
Author_Institution :
Steklov Math. Inst., Moscow, Russia
Abstract :
We consider the diffraction of shortwave radiation by a convex body with the boundary having a jump of curvature. In cross-section the boundary consists of two parts: convex and planar, smoothly joined. A special case of diffraction by the curve with the curvature jump is under consideration: the jump point is situated in the penumbra region. Using asymptotic methods we obtain new formulae for the wave field in the main approximation in problems with Dirichlet, Neumann and impedance boundary conditions
Keywords :
acoustic impedance; acoustic wave diffraction; Dirichlet boundary conditions; Neumann boundary conditions; acoustic waves; approximation; asymptotic methods; convex body; convex part; cross-section; curvature jump; diffraction; impedance boundary conditions; jump point; penumbra region; planar part; shortwave radiation; wave field; Acoustic propagation; Acoustic waves; Acoustical engineering; Delta modulation; Diffraction; Electromagnetic radiation; Maxwell equations; Optical propagation; Quadratic programming; Radio navigation;
Conference_Titel :
Day on Diffraction Millenniuym Workshop, 2000. International Seminar
Conference_Location :
St. Petersburg
Print_ISBN :
5-7997-0252-4
DOI :
10.1109/DD.2000.902357
