ANZIAM J.
45 (2003), 133-143
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Natural cubic element formulation and infinite domain modelling for potential flow problems
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G. A. Mohr
International Arts and Sciences College
68 Tulip Grove
Cheltenham VIC 3192
Australia
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A. S. Power
International Arts and Sciences College
68 Tulip Grove
Cheltenham VIC 3192
Australia
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Abstract
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A simple formulation of a 9 df cubic Hermitian
finite element for potential flow problems is
given, using the interpolation of the BCIZ
element and after Argyris, defining natural
velocities parallel to the element sides.
Consistent loads for body forces are also derived
and it is shown that these are necessary to
obtain accurate results when body forces are
significant. Example problems include those of
infinite domains for which simple conditions at infinity
are used.
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