# View the mesh
mview = MeshView("Example 7", 100, 100, 500, 500)
mview.show(mesh, lib="mpl", method="orders", notebook=False)
# Solve the fine mesh problem
rs = RefSystem(ls)
rs.assemble()
rs.solve_system(sln_fine)
# Calculate element errors and total error estimate
hp = H1OrthoHP(space);
err_est = hp.calc_error(sln_coarse, sln_fine) * 100
print("Error estimate: %d" % err_est)
# If err_est too large, adapt the mesh
if (err_est < ERR_STOP):
done = True
else:
hp.adapt(THRESHOLD, STRATEGY, ADAPT_TYPE)#, ISO_ONLY, MESH_REGULARITY)
ndofs = space.assign_dofs()
if (ndofs >= NDOF_STOP):
done = True
print ("Total running time: %d sec" % cpu)
# Show the fine solution - this is the final result
sview.show(sln_fine, lib="mayavi")
gview.show(sln_fine, sln_fine, EPS_HIGH)
# initialize the discrete problem
wf = WeakForm(3)
set_forms(wf, xprev, yprev)
# visualize the solution
vview = VectorView("velocity [m/s]", 0, 0, 1200, 350)
pview = ScalarView("pressure [Pa]", 0, 500, 1200, 350)
vview.set_min_max_range(0, 1.9)
vview.show_scale(False)
pview.show_scale(False)
pview.show_mesh(False)
solver = DummySolver()
sys = LinSystem(wf, solver)
sys.set_spaces(xvel, yvel, press)
sys.set_pss(pss)
#dp.set_external_fns(xprev, yprev)
EPS_LOW = 0.0014
for i in range(1000):
print "*** Iteration %d ***" % i
psln = Solution()
sys.assemble()
sys.solve_system(xprev, yprev, psln)
vview.show(xprev, yprev, 2*EPS_LOW)
pview.show(psln)
vview.wait()
