TIME DEPENDENT PROBLEM OF DIFFRACTION OF A SPHERICAL ACOUSTIC WAVE FROM AN ABSORBING HALF PLANE Page No: 285-288

Bashir Ahmad, Ahmed Al-Saedi and Falleh Al-Solamy

Keywords: Time dependent problem, spherical acoustic wave, absorbing half plane.

Abstract: The diffraction of a spherical acoustic wave from an absorbing half plane due to an arbitrary time dependent source distribution in the presence of a moving fluid is considered. The convolution integral appearing in the process of calculating inverse temporal transform has been evaluated asymptotically to present the diffracted field. This procedure is applicable to any type of time dependence provided the duration of incoming signal is small as compared to the emitted signal.



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