Chandrasekhar, B and Rao, Sadasiva M (2004) Acoustic scattering from rigid bodies of arbitrary shape—Double layer formulation. In: The Journal of the Acoustical Society of America, 115 (5). pp. 1926-1933.
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In this work, a numerical method is presented, based on the well-known method of moments(MoM), to calculate the acoustic fields scattered by a three-dimensional, arbitrarily shaped, acoustically rigid body subjected to a plane wave incidence. The mathematical formulation is based on the potential theory and, in this work, the numerical method is applicable to the so-called double layer formulation (DLF). The scattering body is approximated by planar triangular patches. For the MoM solution using triangular patch modeling, edge-based basis functions are utilized to approximate the source distribution efficiently. These basis functions along with an appropriate testing procedure generates a simple numerical algorithm that is versatile enough to be applicable to closed, as well as open bodies. Finally, the present solution method is validated with several representative examples.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Acoustical Society of America.|
|Department/Centre:||Division of Information Sciences > Supercomputer Education & Research Centre|
|Date Deposited:||16 Mar 2007|
|Last Modified:||19 Sep 2010 04:35|
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