TY - JOUR

T1 - COMPUTATION OF THE SECOND TERM OF THE PROPAGATION CONSTANT OF CREEPING WAVES BY THE BOUNDARY LAYER METHOD

AU - Andronov, I.V.

AU - Bouche, D.

PY - 1994

Y1 - 1994

N2 - Creeping waves propagate and decay on the boundary of convex obstacles. The propagation constant of these waves has an asymptotic expansion in fractional powers of the wavenumber k. The first term of this expansion is well-known, but the second term has only been determined for perfectly conducting objects, and specific shapes : bodies of revolution, canonical problems. In this paper, we compute this second term in the case of a general convex object satisfying an impedance boundary condition, by using a boundarylayer method. The result shows the effects of the geometrical parameters of the geodesic along which the creeping wave propagates, and of the variations of the surface impedance. © 1994 Springer-Verlag.

AB - Creeping waves propagate and decay on the boundary of convex obstacles. The propagation constant of these waves has an asymptotic expansion in fractional powers of the wavenumber k. The first term of this expansion is well-known, but the second term has only been determined for perfectly conducting objects, and specific shapes : bodies of revolution, canonical problems. In this paper, we compute this second term in the case of a general convex object satisfying an impedance boundary condition, by using a boundarylayer method. The result shows the effects of the geometrical parameters of the geodesic along which the creeping wave propagates, and of the variations of the surface impedance. © 1994 Springer-Verlag.

M3 - статья

SP - 199

EP - 204

JO - Annales des Telecommunications/Annals of Telecommunications

JF - Annales des Telecommunications/Annals of Telecommunications

SN - 0003-4347

IS - 3-4

ER -