Numerical modelisation of the scattering of an acoustic wave from a wedge immersed in a fluid S.L. CHADLI, S. MELLIANI, J.F. COLOMBEAU, B. PERROT et M. DE BILLY J. Phys. IV France, 04 C5 (1994) C5-701-C5-704 DOI: 10.1051/jp4:19945150