heat_mass_transfer#

class ansys.fluent.core.solver.tui_231.main_menu.solve.set.multiphase_numerics.heat_mass_transfer(path, service)#

Bases: TUIMenu

Enters the menu for the multiphase heat mass transfer parameters.

Methods:

alternative_energy_treatment(*args, **kwargs)

Enables the alternative treatment of the energy sources.

Classes:

area_density(path, service)

Enters the menu for the area density.

boiling(path, service)

Enters the menu for the advanced boiling options for the semi-mechanistic boiling model.

cavitation(path, service)

Enters the cavitation heat mass transfer menu.

evaporation_condensation(path, service)

Evaporation-condensation advanced options menu.
alternative_energy_treatment(*args, **kwargs)#

Enables the alternative treatment of the energy sources. For more information, see .

class area_density(path, service)#

Bases: TUIMenu

Enters the menu for the area density.

Methods:

ia_grad_sym(*args, **kwargs)

Enables/disables the interfacial area density Gradient-Symmetric model.

vof_min_seeding(*args, **kwargs)

Sets the minimum volume fraction for the area density and cavitation.
ia_grad_sym(*args, **kwargs)#

Enables/disables the interfacial area density Gradient-Symmetric model. For more information about this model, see .

vof_min_seeding(*args, **kwargs)#

Sets the minimum volume fraction for the area density and cavitation. This may be useful, for example, in cases when a species mass transfer model (such as the Symmetric model or Particle model) do not consider evaporation or condensation if the volume fraction of one of the phases is zero. The seeding allows for a phase change to occur in the fluid flow. The default value is 1e-6.

class boiling(path, service)#

Bases: TUIMenu

Enters the menu for the advanced boiling options for the semi-mechanistic boiling model.

Methods:

heat_flux_relaxation_factor(*args, **kwargs)

Sets the under-relaxation factor for boiling heat flux.

show_expert_options(*args, **kwargs)

Exposes the expert options for the semi-mechanistic boiling model.

two_resistance_boiling_framework(*args, **kwargs)

Enables/disables the two-resistance boiling framework to improve the robustness and accuracy of the solution of cases with multiple boiling mechanisms.
heat_flux_relaxation_factor(*args, **kwargs)#

Sets the under-relaxation factor for boiling heat flux. See for details.

show_expert_options(*args, **kwargs)#

Exposes the expert options for the semi-mechanistic boiling model. For more information about these options, see .

two_resistance_boiling_framework(*args, **kwargs)#

Enables/disables the two-resistance boiling framework to improve the robustness and accuracy of the solution of cases with multiple boiling mechanisms. For more information about this item, see .

class cavitation(path, service)#

Bases: TUIMenu

Enters the cavitation heat mass transfer menu.

Methods:

display_clipped_pressure(*args, **kwargs)

Clipped pressure is just used for the properties evaluation.

max_vapor_pressure_ratio(*args, **kwargs)

Sets the maximum limit on the vapor pressure after the turbulence and thermal correction.

min_vapor_pressure(*args, **kwargs)

Sets the minimum vapor pressure limit for the cavitation mass-transfer model.

schnerr_cond_coeff(*args, **kwargs)

Sets the condensation coefficient for the Schnerr-Sauer model ( in ).

schnerr_evap_coeff(*args, **kwargs)

Sets the evaporation coefficient for the Schnerr-Sauer model ( in ).

turbulent_diffusion(*args, **kwargs)

Enables/disables the turbulent diffusion treatment for a cavitating turbulent flow.
display_clipped_pressure(*args, **kwargs)#

Clipped pressure is just used for the properties evaluation. Mass Transfer Rate uses unclipped pressure.

max_vapor_pressure_ratio(*args, **kwargs)#

Sets the maximum limit on the vapor pressure after the turbulence and thermal correction. The default value is five times the vapor pressure, with consideration of turbulent and thermal effects for each cell and phase.

min_vapor_pressure(*args, **kwargs)#

Sets the minimum vapor pressure limit for the cavitation mass-transfer model. The default value is 1 Pa.

schnerr_cond_coeff(*args, **kwargs)#

Sets the condensation coefficient for the Schnerr-Sauer model ( in ). The default and recommended value of 0.2.

schnerr_evap_coeff(*args, **kwargs)#

Sets the evaporation coefficient for the Schnerr-Sauer model ( in ). The default and recommended value of 1.

turbulent_diffusion(*args, **kwargs)#

Enables/disables the turbulent diffusion treatment for a cavitating turbulent flow. See for details.

class evaporation_condensation(path, service)#

Bases: TUIMenu

Evaporation-condensation advanced options menu.

Methods:

ia_norm_min_limit(*args, **kwargs)

Minimum normalized area density below which mass transfer rate is set to zero.

max_rel_humidity(*args, **kwargs)

Maximum value of relative humidity to limit condensation rate.

vof_from_max_limit(*args, **kwargs)

Maximum volume fraction above which mass transfer rate is set to zero.

vof_from_min_limit(*args, **kwargs)

Minimum volume fraction below which mass transfer rate is set to zero.

vof_to_max_limit(*args, **kwargs)

Maximum volume fraction above which mass transfer rate is set to zero.

vof_to_min_limit(*args, **kwargs)

Minimum volume fraction below which mass transfer rate is set to zero.
ia_norm_min_limit(*args, **kwargs)#

Minimum normalized area density below which mass transfer rate is set to zero.

max_rel_humidity(*args, **kwargs)#

Maximum value of relative humidity to limit condensation rate.

vof_from_max_limit(*args, **kwargs)#

Maximum volume fraction above which mass transfer rate is set to zero.

vof_from_min_limit(*args, **kwargs)#

Minimum volume fraction below which mass transfer rate is set to zero.

vof_to_max_limit(*args, **kwargs)#

Maximum volume fraction above which mass transfer rate is set to zero.

vof_to_min_limit(*args, **kwargs)#

Minimum volume fraction below which mass transfer rate is set to zero.