jan/fdfd_tools
2
2
Fork 1
Code Issues Pull Requests Releases Wiki Activity

test (and fix tests) for constant non-1 dxes

Browse Source 
Still need to look at non-constant dxes
This commit is contained in:
Jan Petykiewicz 2019-07-22 00:27:32 -07:00
parent 7092c13088
commit 89976647f2
1 changed files with 74 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

78
fdfd_tools/test_fdtd.py
View File

@ -54,6 +54,9 @@ class BasicTests():
args = {'dxes': self.dxes,
'epsilon': self.epsilon}
dxes = self.dxes if self.dxes is not None else tuple(tuple(numpy.ones(s) for s in self.epsilon.shape[1:]) for _ in range(2))
dV = numpy.prod(numpy.meshgrid(*dxes[0], indexing='ij'), axis=0)
u_eprev = None
for ii in range(1, 8):
with self.subTest(i=ii):
@ -61,8 +64,7 @@ class BasicTests():
u_estep = fdtd.energy_estep(h0=self.hs[ii], e1=self.es[ii], h2=self.hs[ii + 1], **args)
du_half_h2e = u_estep - u_hstep
div_s_h2e = self.dt * fdtd.poynting_divergence(e=self.es[ii], h=self.hs[ii], dxes=self.dxes)
self.assertTrue(numpy.allclose(du_half_h2e, -div_s_h2e, rtol=1e-4))
div_s_h2e = self.dt * fdtd.poynting_divergence(e=self.es[ii], h=self.hs[ii], dxes=self.dxes) * dV
self.assertTrue(numpy.allclose(du_half_h2e, -div_s_h2e, rtol=1e-4),
msg='du_half_h2e\n{}\ndiv_s_h2e\n{}'.format(numpy.rollaxis(du_half_h2e, -1),
-numpy.rollaxis(div_s_h2e, -1)))
@ -73,8 +75,7 @@ class BasicTests():
# previous half-step
du_half_e2h = u_hstep - u_eprev
div_s_e2h = self.dt * fdtd.poynting_divergence(e=self.es[ii-1], h=self.hs[ii], dxes=self.dxes)
self.assertTrue(numpy.allclose(du_half_e2h, -div_s_e2h, rtol=1e-4))
div_s_e2h = self.dt * fdtd.poynting_divergence(e=self.es[ii-1], h=self.hs[ii], dxes=self.dxes) * dV
self.assertTrue(numpy.allclose(du_half_e2h, -div_s_e2h, rtol=1e-4),
msg='du_half_e2h\n{}\ndiv_s_e2h\n{}'.format(numpy.rollaxis(du_half_e2h, -1),
-numpy.rollaxis(div_s_e2h, -1)))
@ -84,6 +85,8 @@ class BasicTests():
def test_poynting_planes(self):
args = {'dxes': self.dxes,
'epsilon': self.epsilon}
dxes = self.dxes if self.dxes is not None else tuple(tuple(numpy.ones(s) for s in self.epsilon.shape[1:]) for _ in range(2))
dV = numpy.prod(numpy.meshgrid(*dxes[0], indexing='ij'), axis=0)
u_eprev = None
for ii in range(1, 8):
@ -98,6 +101,9 @@ class BasicTests():
py = self.src_mask.copy()
pz = numpy.roll(self.src_mask, +1, axis=0)
s_h2e = -fdtd.poynting(e=self.es[ii], h=self.hs[ii]) * self.dt
s_h2e[0] *= dxes[0][1][None, :, None] * dxes[0][2][None, None, :]
s_h2e[1] *= dxes[0][0][:, None, None] * dxes[0][2][None, None, :]
s_h2e[2] *= dxes[0][0][:, None, None] * dxes[0][1][None, :, None]
planes = [s_h2e[px].sum(), -s_h2e[mx].sum(),
s_h2e[py].sum(), -s_h2e[my].sum(),
s_h2e[pz].sum(), -s_h2e[mz].sum()]
@ -133,6 +139,36 @@ class Basic2DNoDXOnlyVacuum(unittest.TestCase, BasicTests):
self.hs.append(h)
class Basic2DUniformDX3(unittest.TestCase, BasicTests):
def setUp(self):
shape = [3, 5, 5, 1]
self.dt = 0.5
self.j_mag = 32
self.dxes = tuple(tuple(numpy.full(s, 2.0) for s in shape[1:]) for _ in range(2))
self.src_mask = numpy.zeros(shape, dtype=bool)
self.src_mask[1, 2, 2, 0] = True
self.epsilon = numpy.full(shape, 1, dtype=float)
self.epsilon[self.src_mask] = 2
e = numpy.zeros_like(self.epsilon)
h = numpy.zeros_like(self.epsilon)
e[self.src_mask] = self.j_mag / self.epsilon[self.src_mask]
self.es = [e]
self.hs = [h]
eh2h = fdtd.maxwell_h(dt=self.dt, dxes=self.dxes)
eh2e = fdtd.maxwell_e(dt=self.dt, dxes=self.dxes)
for _ in range(9):
e = e.copy()
h = h.copy()
eh2h(e, h)
eh2e(e, h, self.epsilon)
self.es.append(e)
self.hs.append(h)
class Basic3DUniformDXOnlyVacuum(unittest.TestCase, BasicTests):
def setUp(self):
shape = [3, 5, 5, 5]
@ -220,6 +256,40 @@ class Basic3DUniformDX(unittest.TestCase, BasicTests):
self.hs.append(h)
class Basic3DUniformDX3(unittest.TestCase, BasicTests):
def setUp(self):
shape = [3, 5, 5, 5]
self.dt = 0.5
self.j_mag = 32
self.dxes = tuple(tuple(numpy.full(s, 3.0) for s in shape[1:]) for _ in range(2))
self.src_mask = numpy.zeros(shape, dtype=bool)
self.src_mask[1, 2, 2, 2] = True
self.epsilon = numpy.full(shape, 1, dtype=float)
self.epsilon[self.src_mask] = 2
e = numpy.zeros_like(self.epsilon)
h = numpy.zeros_like(self.epsilon)
e[self.src_mask] = self.j_mag / self.epsilon[self.src_mask]
self.es = [e]
self.hs = [h]
eh2h = fdtd.maxwell_h(dt=self.dt, dxes=self.dxes)
eh2e = fdtd.maxwell_e(dt=self.dt, dxes=self.dxes)
for _ in range(9):
e = e.copy()
h = h.copy()
eh2h(e, h)
eh2e(e, h, self.epsilon)
self.es.append(e)
self.hs.append(h)
logging.basicConfig(level=logging.DEBUG)
def tearDown(self):
logging.basicConfig(level=logging.INFO)
class JdotE_3DUniformDX(unittest.TestCase):
def setUp(self):
shape = [3, 5, 5, 5]