| import openpnm as op |
| from openpnm.phase import mixtures |
|
|
|
|
| ws = op.Workspace() |
| proj = ws.new_project() |
|
|
| pn = op.network.Cubic(shape=[30, 30, 10], spacing=1e-4, project=proj) |
| geo = op.geometry.SpheresAndCylinders(network=pn, pores=pn.Ps, throats=pn.Ts) |
|
|
| N2 = mixtures.species.gases.N2(network=pn, name='pure_N2') |
| O2 = mixtures.species.gases.O2(network=pn, name='pure_O2') |
| air = mixtures.GenericMixture(network=pn, components=[N2, O2]) |
| air.set_mole_fraction(N2, 0.79) |
| air.set_mole_fraction(O2, 0.21) |
|
|
| air.add_model(propname='pore.diffusivity.pure_O2', |
| model=op.models.phase.mixtures.fuller_diffusivity) |
| air.add_model(propname='pore.viscosity', |
| model=op.models.misc.polynomial, |
| prop='pore.temperature', |
| a=[0.00000182082, 6.51815E-08, -3.48553E-11, 1.11409E-14]) |
|
|
| phys = op.physics.GenericPhysics(network=pn, phase=air, geometry=geo) |
| phys.add_model(propname='throat.diffusive_conductance', |
| pore_diffusivity='pore.diffusivity.pure_O2', |
| throat_diffusivity='throat.diffusivity.pure_O2', |
| model=op.models.physics.diffusive_conductance.ordinary_diffusion) |
| phys.add_model(propname='throat.hydraulic_conductance', |
| pore_viscosity='pore.viscosity', |
| model=op.models.physics.hydraulic_conductance.classic_hagen_poiseuille) |
|
|
| sf = op.algorithms.StokesFlow(network=pn, phase=air) |
| sf.set_value_BC(pores=pn.pores('left'), values=200000) |
| sf.set_value_BC(pores=pn.pores('right'), values=100000) |
| sf.run() |
| air.update(sf.results()) |
|
|
| air.regenerate_models() |
|
|
| fd = op.algorithms.FickianDiffusion(network=pn, phase=air) |
| fd.settings["quantity"] = 'pore.concentration.pure_O2' |
| fd.set_value_BC(pores=pn.pores('left'), values=1) |
| fd.set_value_BC(pores=pn.pores('right'), values=0) |
| fd.run() |
| air.update(fd.results()) |
|
|
