Setting DO Model Parameters

In a participating media simulation, a typical tree structure appearing under the Models node of a given continuum is as shown below.

STAR-CCM+ currently offers a single option for simulating this type of problem, namely the Discrete Ordinates model (DOM). A key reason for this is that the model offers itself readily to STAR-CCM+'s parallelization techniques.

The desired degree of accuracy in simulating the participating media radiation effect (see What is the Discrete Ordinates Model?)

The radiative properties of the medium lying between the radiating boundaries. In the current STAR-CCM+ version, the scattering coefficient is assumed to be negligible so only the absorption coefficient is required.

The radiative properties of the boundary surfaces. These are defined in the exactly the same way as for surface-to-surface models (see Setting Thermal Radiation Model Parameters).