Setting Initial Conditions

Training Guide > Combustion Tutorials > Adiabatic PPDF Flamelets Tutorial > Setting Initial Conditions

Setting Initial Conditions

The combustor's initial condition is a stationary flow field consisting entirely of air. By default, the initial mixture fraction, mixture fraction variance and velocity are all zero so no changes are required to these. However, the initial turbulence parameters must be changed.

Select the Continua > Physics 1 > Initial Conditions > Turbulence Specification node.

Change the Method property to Intensity + Length Scale.

Select the Turbulence Intensity > Constant node.

Change the Value property to 0.05.

Select the Turbulent Length Scale > Constant node

Change the Value property to 0.2 m.

Save the simulation.

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