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

fYear

2000

fDate

2000

Firstpage

60

Lastpage

69

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Day on Diffraction Millenniuym Workshop, 2000. International Seminar

Conference_Location

St. Petersburg

Print_ISBN

5-7997-0252-4

Type

conf

DOI

10.1109/DD.2000.902357

Filename

902357