Hivel2D users manual
1
φ 3 = (1+ ξ )(1+ η )
4
1
φ 4 = (1 - ξ )(1+ η )
4
3
x = ∑ φi xi
(E3)
i=1
and
3
y = ∑ φi yi
(E4)
i=1
simultaneously for x and h, where:
1
φ1 = - ( ξ + η )
2
1
φ2 =
(1+ ξ )
2
1
φ3 =
(1+ η )
2
are the bilinear shape functions for a triangular element, results in the following equations
for x and h:
55
Appendix E Interpolation Program