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FLUID_PROPERTY¶

Defines fluid properties (e.g. diffusion coefficient, etc.).

Required Cards:¶

FLUID_PROPERTY: Opens the fluid property block.
DIFFUSION_COEFFICIENT <float>: Molecular diffusion coefficient [m²/s]

Required Cards in GENERAL mode:¶

FLUID_PROPERTY: Opens the fluid property block.
PHASE [LIQUID, GAS]: Specifies the fluid phase.
DIFFUSION_COEFFICIENT <float>: Molecular diffusion coefficient [m²/s]

Required for temperature-dependent diffusion:¶

DIFFUSION_ACTIVATION_ENERGY <float>: Diffusion activation energy for temperature dependent diffusion calculated with the Arrhenius equation. [J/mol]

Examples¶

FLUID_PROPERTY
  DIFFUSION_COEFFICIENT 1.d-9
/

FLUID_PROPERTY
  PHASE LIQUID
  DIFFUSION_COEFFICIENT 1.d-9
/
FLUID_PROPERTY
  PHASE GAS
  DIFFUSION_COEFFICIENT 2.1d-5
/

FLUID_PROPERTY
  DIFFUSION_COEFFICIENT 1.d-9
  DIFFUSION_ACTIVATION_ENERGY 12.6 kJ/mol
/