Morphology is used to describe the connectivity or distribution of the fluid - whether it forms a single continuous medium, or whether it is present, for example, in small droplets that are not connected.
You can select from:
A continuous phase or continuous fluid is one which forms a continuous connected region. An example is air, when modeling rain drops in air.
A dispersed fluid is a fluid that is present in discrete regions that are not connected. Examples are water droplets in air or gas bubbles in a liquid.
A dispersed solid is one that is present in discrete regions that are not connected, for example, solid particulates.
You must select the morphology of all fluids as continuous if
you want to use the
Mixture model on the Multiphase Options tab. If dispersed fluids or solids
are included, then the
Particle model will be
the only valid option.
Examples of multiphase flow with different morphologies are available. For details, see Multiphase Examples.
This is used for fluids when using the Particle Transport Model. For details, see Particle Morphology Options.
This is used for solids when using the Particle Transport Model. For details, see Particle Morphology Options.
A polydispersed fluid is a fluid that is present in discrete regions that are not connected and with varying sizes of the discrete regions. Typically, this morphology is used for modeling air bubbles of varying sizes in a liquid.
Droplets (Phase Change) are required if you want to use the Droplet Condensation Model. For details, see Droplet Condensation Model.