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Convergence of the numerical solution is represented by a negligible change in power coefficient from an approximately four-fold increase in number of elements in the mesh. The mesh was refined by adjusting global and local mesh controls: relevance center, face sizing, inflation and sphere of influence. To obtain a mesh of 7.7 million elements (right-most data point in the plot), the relevance center was set to fine; the face size was set to 0.05m; for inflation, the number of layers was increased to 10 at a growth rate of 1.2; for the sphere of influence, the radius was set to 50m and element size was set to 1m.

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