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view plotDerivative2d.jl @ 1680:b30db2ea34ed feature/sbp_operators/laplace_curvilinear

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Add concistency tests for normal_derivative and and fix bug regarding sign of boundary
author Jonatan Werpers <jonatan@werpers.com>
date Sun, 30 Jun 2024 15:57:22 +0200
parents d61bfc8cf6a5
children
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include("sbpPlot.jl")

g = sbp.Grid.EquidistantGrid((100,75), (0.0, 0.0), (2pi, 3/2*pi))
op = sbp.readOperator("d2_4th.txt","h_4th.txt")
Laplace = sbp.Laplace(g, 1.0, op)

init(x,y) = sin(x) + cos(y)
v = sbp.Grid.evalOn(g,init)
u = zero(v)

sbp.apply!(Laplace,u,v)

#@show u
#@show u'*u

plotgridfunction(g,u)