<font face="Helv" size="2">
<p>Hi,</p>
<p>I have a 2D problem, with the unknown a vector V, defined using basis BF_NodeX and BF_NodeY. The continuous 2D domain is partitioned into several contiguous regions. A scalar parameter "f" is constant over a partition and undergoes a discontinuity across an interface. In the weak formulation, I end up with a terms of the form</p>
<p>Integral over the boundary of a partition of { f div[vec(V)] [vec(W)*unitVec(n)] }, where W is the test vector, n is the unit outward normal to the contour and * represents the dot product. </p>
<p>Since f is discontinous across the interface, the integrals do not cancel while traversing the interface twice (for adjacent regions). How do I represent this term in the formulation ?</p>
<p>Thanks</p>
<p>Rgds,</p>
<p>Amit</p></font>