Defining models

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

Use solver TUI commands

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

Define the 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 the 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 the 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 the 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 Settings objects to define models.

Enable the energy model

Python code

solver.setup.models.energy.enabled = True

Enable the viscous model

Python code

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