Hivel2D users manual
β1
α2 (- α3 β1 + α1β2)
ξ = -
+
(E5)
α1 (- γ 1 + γ 2 + γ 3 - γ 4 - γ 5 + γ 6)
α1
and
(- α3 β1 + α1β2)
η = -
(E6)
(- γ 1
+ γ 2 + γ 3 - γ 4 - γ 5 + γ 6)
where
α 1 = x1 - x 2
α 2 = x1 - x 3
α 3 = y1 - y 2
β1 = 2x p - x 2 - x 3
β2 = 2y p - y 2 - y 3
γ 1 = x 2 y1
γ 2 = x 3 y1
γ 3 = x1y 2
γ 4 = x3y2
γ 5 = x1y 3
γ 6 = x2 y3
γ 5 = x1y 3
γ 5 = x1y 3
56
Appendix E Interpolation Program
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