## 17.5. Fluids Tab

Fluid sources are used in an Eulerian multiphase simulation to apply volumetric source terms to individual fluids, and in particle transport to model absorption of particles in the subdomain. For details, see Particle Absorption.

1. Select a fluid from the Fluid list to set fluid-specific sources.

2. Toggle on the check box next to the fluid to expand the options.

3. Sources are set in the same way as for single phase simulations. For details, see Single-Phase Fluid Sources.

It is important to note that these source terms are not automatically multiplied by the fluid volume fraction (that is, do not automatically reduce to zero as the volume fraction goes to zero). For details, see Fluid-Specific Sources in the CFX-Solver Modeling Guide.

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