Mapped grids#80

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harpolea wants to merge 21 commits intomainfrom

Commits on Feb 25, 2019

Commits on Feb 27, 2019

Commits on Mar 1, 2019

switch to computing line and area elements numerically to deal with nonlinear grids
harpolea
committed
reflect-odd boundary conditions for mapped grids must be rotated
harpolea
committed

Commits on Mar 6, 2019

moved some function calls outside of loops to speed up problem initialisation
harpolea
committed

Commits on Mar 7, 2019