Define models

PyFluent supports using Solver TUI commands and Solver settings objects to define models.

Use solver TUI commands

The examples in this section show how you use Solver TUI commands to define models.

Define energy model

This example shows a comparison between the TUI command and the Python code for enabling and disabling the energy model.

TUI command

/define/models/energy yes no no no yes

Python code

import ansys.fluent.core as pyfluent

solver = pyfluent.launch_fluent(precision="double", processor_count=2, mode="solver")
solver.tui.file.read_case("file.cas.h5")
solver.tui.define.models.energy("yes", "no", "no", "no", "yes")

Define viscous model

This example shows a comparison between the TUI command and the Python code for enabling and disabling various viscous models.

TUI command

/define/models/viscous/laminar yes
/define/models/viscous/kw-sst yes
/define/models/viscous/ke-standard yes

Python code

solver.tui.define.models.viscous.laminar("yes")
solver.tui.define.models.viscous.kw_sst("yes")
solver.tui.define.models.viscous.ke_standard("yes")

Define radiation model

This example shows a comparison between the TUI command and the Python code for enabling and disabling various radiation models.

TUI command

/define/models/radiation/s2s yes
/define/models/radiation/p1 yes

Python code

solver.tui.define.models.radiation.s2s("yes")
solver.tui.define.models.radiation.p1("yes")

Define multiphase model

This example shows a comparison between the TUI command and the Python code for defining different multiphase models.

TUI command

/define/models/multiphase/model vof
/define/models/multiphase/model eulerian
/define/models/multiphase/model mixture
/define/models/multiphase/model wetsteam

Python code

solver.tui.define.models.multiphase.model("vof")
solver.tui.define.models.multiphase.model("eulerian")
solver.tui.define.models.multiphase.model("mixture")
solver.tui.define.models.multiphase.model("wetsteam")

Use settings objects

The examples in this section show how you use Solver settings objects to define models.

Enable energy model

Python code

solver.setup.models.energy.enabled = True

Enable viscous model

Python code

solver.setup.models.viscous.k_epsilon_model.enabled = True
solver.setup.models.viscous.k_omega_model.enabled = True