def main():
np.set_printoptions(precision=3)
w = 1
l = 1
h = 1
vrt = np.array \
( [ [-w/2, 0, -h/2]
, [-w/2, 0, h/2]
, [ w/2, 0, h/2]
, [ w/2, 0, -h/2]
, [-w/2, l, 0 ]
, [ w/2, l, 0 ] ] )
tet = np.array \
( [ [0, 1, 3, 5]
, [1, 2, 3, 5]
, [0, 1, 4, 5] ] )
tri = np.array \
( [ [0, 1, 4]
, [2, 3, 5] ] )
lin = np.array([[0, 3]])
v2e, bwh = p04.edge_num_banded(tet)
pgroups = [(p04.racc, p01.isrc(1, [1, 0, 0]), lin),
(p04.lacc, p01.volume(0, p04.e0, p04.u0), tet),
(p04.pec, lambda f, p: None, tri)]
freq = 50
sol = p04.solve_geom(freq, vrt, pgroups, v2e.nnz, v2e, bwh)
print(sol)
print(p04.isrc_v(sol, vrt, lin, v2e, [1, 0, 0]))
print(1 / (p04.e0 * 0.5 * h * l / w * 2 * np.pi * freq))
def main():
np.set_printoptions(precision=3)
w = 1
l = 1
h = 1
vrt = np.array \
( [ [-w/2, 0, -h/2]
, [-w/2, 0, h/2]
, [ w/2, 0, h/2]
, [ w/2, 0, -h/2]
, [-w/2, l, 0 ]
, [ w/2, l, 0 ] ] )
tet = np.array \
( [ [0, 1, 3, 5]
, [1, 2, 3, 5]
, [0, 1, 4, 5] ] )
tri = np.array \
( [ [0, 1, 4]
, [2, 3, 5] ] )
lin = np.array( [ [0, 3] ] )
v2e, bwh = p04.edge_num_banded(tet)
pgroups = [ (p04.racc, p01.isrc(3, [1/(0.5*h*l),0,0]), tet)
, (p04.lacc, p01.volume(1/140e-8, p04.e0, p04.u0), tet) ]
freq = 50
sol = p04.solve_geom(freq, vrt, pgroups, v2e.nnz, v2e, bwh)
print(sol)
print(p04.isrc_v(sol, vrt, lin, v2e, [1,0,0]))
print(140e-8*w/(0.5*h*l))
def get_mesh():
gmsh.initialize()
air_tag, cond_tag, isrc_tag, probe_tag = make_geom()
print(probe_tag, air_tag, cond_tag, isrc_tag)
gmsh.model.occ.synchronize()
probe, isrc, cond, air = assign_physicals(air_tag, cond_tag, isrc_tag,
probe_tag)
#gmsh.model.mesh.setSize(gmsh.model.getEntities(0), 10)
#gmsh.option.setNumber("Mesh.Algorithm", 8)
gmsh.model.mesh.generate(3)
nodes = gmsh.model.mesh.getNodes()
gmsh.write('g09.msh2')
tet = []
ret_elems = []
ret_probe = []
for ntag in gmsh.model.getEntitiesForPhysicalGroup(3, isrc):
es = gmsh.model.mesh.getElements(3, ntag)
ns = es[2][0].reshape(-1, 4) - 1
ns.sort()
ret_elems.append \
( ( p04.racc
, p01.isrc(3, [0,1/(0.01**2*np.pi),0])
, ns ) )
ret_elems.append \
( ( p04.lacc
, p01.volume(0, p04.e0, p04.u0)
, ns ) )
tet.append(ns)
for ntag in gmsh.model.getEntitiesForPhysicalGroup(1, probe):
es = gmsh.model.mesh.getElements(1, ntag)
ns = es[2][0].reshape(-1, 2) - 1
ns.sort()
ret_probe.append(ns)
for ntag in gmsh.model.getEntitiesForPhysicalGroup(3, cond):
es = gmsh.model.mesh.getElements(3, ntag)
ns = es[2][0].reshape(-1, 4) - 1
ns.sort()
ret_elems.append \
( ( p04.lacc
, p01.volume(1/140e-8, p04.e0, p04.u0)
, ns ) )
tet.append(ns)
for ntag in gmsh.model.getEntitiesForPhysicalGroup(3, air):
es = gmsh.model.mesh.getElements(3, ntag)
ns = es[2][0].reshape(-1, 4) - 1
ns.sort()
ret_elems.append \
( ( p04.lacc
, p01.volume(0, p04.e0, p04.u0)
, ns ) )
tet.append(ns)
gmsh.finalize()
return nodes[1].reshape(-1, 3), ret_elems, tet, ret_probe
def get_mesh():
gmsh.initialize()
air_tag, cond_tag, isrc_tags, probe_tag = make_geom()
print(probe_tag, air_tag, cond_tag, isrc_tags)
gmsh.model.occ.synchronize()
probe, isrc, cond, air = assign_physicals(air_tag, cond_tag, isrc_tags,
probe_tag)
#gmsh.model.mesh.setSize(gmsh.model.getEntities(0), 20)
gmsh.model.mesh.generate(3)
nodes = gmsh.model.mesh.getNodes()
tet = []
ret_elems = []
ret_probe = []
for ntag in gmsh.model.getEntitiesForPhysicalGroup(2, isrc):
es = gmsh.model.mesh.getElements(2, ntag)
ns = es[2][0].reshape(-1, 3) - 1
ns.sort()
ret_elems.append \
( ( p04.racc
, p01.isrc(2, [0,1/0.02,0])
, ns ) )
for ntag in gmsh.model.getEntitiesForPhysicalGroup(1, probe):
es = gmsh.model.mesh.getElements(1, ntag)
ns = es[2][0].reshape(-1, 2) - 1
ns.sort()
ret_probe.append(ns)
for ntag in gmsh.model.getEntitiesForPhysicalGroup(3, cond):
es = gmsh.model.mesh.getElements(3, ntag)
ns = es[2][0].reshape(-1, 4) - 1
ns.sort()
ret_elems.append \
( ( p04.lacc
, p01.volume(1/140e-8, p04.e0, p04.u0)
, ns ) )
tet.append(ns)
for ntag in gmsh.model.getEntitiesForPhysicalGroup(3, air):
es = gmsh.model.mesh.getElements(3, ntag)
ns = es[2][0].reshape(-1, 4) - 1
ns.sort()
ret_elems.append \
( ( p04.lacc
, p01.volume(0, p04.e0, p04.u0)
, ns ) )
tet.append(ns)
gmsh.finalize()
return nodes[1].reshape(-1, 3), ret_elems, tet, ret_probe
def get_mesh():
gmsh.initialize()
air_tag, pec_tags, isrc_tag = make_geom(1, 0.01)
gmsh.model.occ.synchronize()
isrc, pec, air = assign_physicals(air_tag, pec_tags, isrc_tag)
#gmsh.model.mesh.setSize(gmsh.model.getEntities(0), 3)
#gmsh.model.mesh.setSize(gmsh.model.getEntities(0), 0.7)
gmsh.model.mesh.setSize(gmsh.model.getEntities(0), 0.1)
#gmsh.option.setNumber("Mesh.Algorithm", 8)
gmsh.model.mesh.generate(3)
nodes = gmsh.model.mesh.getNodes()
tet = []
ret_elems = []
probe = []
for ntag in gmsh.model.getEntitiesForPhysicalGroup(1, isrc):
es = gmsh.model.mesh.getElements(1, ntag)
ns = es[2][0].reshape(-1, 2) - 1
ns.sort()
ret_elems.append \
( ( p04.racc
, p01.isrc(1, [0,0,1])
, ns ) )
probe.append(ns)
for ntag in gmsh.model.getEntitiesForPhysicalGroup(2, pec):
es = gmsh.model.mesh.getElements(2, ntag)
ns = es[2][0].reshape(-1, 3) - 1
ns.sort()
ret_elems.append \
( ( p04.lacc
, p01.absorb
, ns ) )
for ntag in gmsh.model.getEntitiesForPhysicalGroup(3, air):
es = gmsh.model.mesh.getElements(3, ntag)
ns = es[2][0].reshape(-1, 4) - 1
ns.sort()
ret_elems.append \
( ( p04.lacc
, p01.volume(0, p04.e0, p04.u0)
, ns ) )
tet.append(ns)
gmsh.finalize()
return nodes[1].reshape(-1,3), ret_elems, tet, probe
def main():
np.set_printoptions(precision=3)
w = 4
l = 14
h = 2
vrt = np.array \
( [ [ 0, 0, -h/2]
, [ 0, 0, h/2]
, [-w/2, l, 0]
, [ w/2, l, 0] ] )
tet = np.array \
( [ [0, 1, 2, 3] ] )
lin = np.array([[0, 1]])
v2e, bwh = p04.edge_num_banded(tet)
pgroups = [(p04.racc, p01.isrc(1, [0, 0, 1]), tet),
(p04.lacc, p01.volume(0, p04.e0, p04.u0), tet)]
freq = 50
sol = p04.solve_geom(freq, vrt, pgroups, v2e.nnz, v2e, bwh)
print(sol)
print(p04.isrc_v(sol, vrt, lin, v2e, [0, 0, 1]))
print(2 * (1 / freq) / 4 * (2 / np.pi) / (4 * np.pi * p04.e0 * 0.5 * h))
