Abstract
A computer program using BEM for solving 2-D potential problems has been developed and test cases have been run. The computer program uses circular-arc or straight elements in conjunction with cubic interpolation of the boundary variables. Use of the special shape elements simplifies the algebra involved in element integrations for both the singular and nonsingular integrations (relative to isoparametric elements). The singular integrations are performed by splitting off the singularity. Results are presented for internal flow in six and twelve-noded circles and a twelve noded rectangle. Good agreement with the exact solution is achieved. The results indicate a significant reduction in number of nodal points is possible. Extensions to 3-D problems are discussed.
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