| import openpnm as op |
| from numpy.testing import assert_allclose |
|
|
|
|
| class TransientAdvectionDiffusionTest: |
|
|
| def setup_class(self): |
| self.net = op.network.Cubic(shape=[4, 3, 1], spacing=1.0) |
| self.net.add_model_collection( |
| op.models.collections.geometry.spheres_and_cylinders) |
| self.net.regenerate_models() |
| self.phase = op.phase.Phase(network=self.net) |
| self.phase['throat.diffusive_conductance'] = 1e-15 |
| self.phase['throat.hydraulic_conductance'] = 1e-15 |
| self.net['pore.volume'] = 1e-14 |
| self.sf = op.algorithms.StokesFlow(network=self.net, phase=self.phase) |
| self.sf.settings._update({'quantity': 'pore.pressure', |
| 'conductance': 'throat.hydraulic_conductance'}) |
| self.sf.set_value_BC(pores=self.net.pores('right'), values=1) |
| self.sf.set_value_BC(pores=self.net.pores('left'), values=0) |
| self.sf.run() |
| self.phase[self.sf.settings['quantity']] = self.sf.x |
| mod = op.models.physics.ad_dif_conductance.ad_dif |
| self.phase.add_model(propname='throat.ad_dif_conductance', model=mod, |
| s_scheme='powerlaw') |
| self.phase.regenerate_models() |
|
|
| def test_transient_advection_diffusion(self): |
| ad = op.algorithms.TransientAdvectionDiffusion(network=self.net, |
| phase=self.phase) |
| ad.settings._update({ |
| 'quantity': 'pore.concentration', |
| 'conductance': 'throat.ad_dif_conductance', |
| 'diffusive_conductance': 'throat.diffusive_conductance', |
| 'hydraulic_conductance': 'throat.hydraulic_conductance', |
| 'pressure': 'pore.pressure' |
| }) |
| ad.set_value_BC(pores=self.net.pores('right'), values=2) |
| ad.set_value_BC(pores=self.net.pores('left'), values=0) |
| ad.run(x0=0, tspan=(0, 1)) |
| desired = 0.55642 |
| actual = ad.x.mean() |
| assert_allclose(actual, desired, rtol=1e-5) |
|
|
| def teardown_class(self): |
| ws = op.Workspace() |
| ws.clear() |
|
|
|
|
| if __name__ == '__main__': |
|
|
| t = TransientAdvectionDiffusionTest() |
| t.setup_class() |
| self = t |
| for item in t.__dir__(): |
| if item.startswith('test'): |
| print(f'Running test: {item}') |
| t.__getattribute__(item)() |
|
|
