:orphan:

.. _pre_processing_internal_diffusion:

internal_diffusion
==================

.. autoclass:: ansys.cfx.core.generated.pre_processing.settings_261.internal_diffusion.internal_diffusion
    :show-inheritance:

.. rubric:: Attributes

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Attribute                                                                                                                                                                                          Summary

===========================================================================================   ============================================================================================================
:ref:`void_fraction <pre_processing_void_fraction>`                                                  Void fraction of the char particle, used for the internal diffusion in the Gibb char oxidation model.

:ref:`volume_over_internal_surface_area <pre_processing_volume_over_internal_surface_area>`     Volume over internal surface area ratio, used for the internal diffusion in the Gibb char oxidation model.

:ref:`internal_diffusion_efficiency <pre_processing_internal_diffusion_efficiency>`           Effective Internal diffusion coefficient of oxygen within the pores, used for the Gibb char oxidation model.

:ref:`reference_dynamic_diffusivity <pre_processing_reference_dynamic_diffusivity>`                                                                                         Reference dynamic diffusivity.

:ref:`reference_temperature <pre_processing_reference_temperature>`                                                                                                     'Reference Temperature' parameter.

:ref:`temperature_exponent <pre_processing_temperature_exponent>`                                                                                                        'Temperature Exponent' parameter.

===========================================================================================   ============================================================================================================

.. rubric:: Included in:

=========================================================================   ==================================

Parent                                                                                                 Summary

=========================================================================   ==================================
:ref:`multiphase_reaction_rate <pre_processing_multiphase_reaction_rate>`   'MULTIPHASE REACTION RATE' object.

=========================================================================   ==================================