The Rotating Machinery, Turbulent Two-Phase Flow, Level Set Interfaces
The Rotating Machinery, Turbulent Two-Phase Flow, Level Set multiphysics interfaces () found under the Multiphase Flow > Rotating Machinery, Two-Phase Flow, Level Set > Turbulent Flow branch (), are multiphysics interfaces designed to track the interface between two immiscible fluids in equipment containing one or more rotating parts. The flow is assumed to be turbulent, that is, to be of high Reynolds number.
When adding a Rotating Machinery Turbulent Two-Phase Flow, Level Set multiphysics interface, a Turbulent Flow interface and a Level Set interface are added in the Model Builder. A Moving Mesh interface with a Rotating Domain node is added automatically in the Model Builder under the Definitions node. In addition, a multiphysics coupling feature, The Two-Phase Flow, Level Set Coupling Feature, is automatically added under the Multiphysics node. Other multiphysics coupling features, The Wetted Wall Coupling Feature and The Interior Wetted Wall Coupling Feature, can be added when needed to model walls.
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The Turbulent Flow, Algebraic yPlus interface () combines a Level Set interface with a Turbulent Flow, Algebraic yPlus interface and a Rotating Domain.
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The Turbulent Flow, L-VEL interface () combines a Level Set interface with a Turbulent Flow, L-VEL interface and a Rotating Domain.
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The Turbulent Flow, k-ε interface () combines a Level Set interface with a Turbulent Flow, k-ε interface and a Rotating Domain.
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The Turbulent Flow, Realizable k-ε interface () combines a Level Set interface with a Turbulent Flow, Realizable k-ε interface and a Rotating Domain.
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The Turbulent Flow, k-ω interface () combines a Level Set interface with a Turbulent Flow, k-ω interface and a Rotating Domain.
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The Turbulent Flow, SST interface () combines a Level Set interface with a Turbulent Flow, SST interface and a Rotating Domain.
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The Turbulent Flow, Low Re k-ε interface () combines a Level Set interface with a Turbulent Flow, Low Re k-ε interface and a Rotating Domain.
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The Turbulent Flow, Spalart-Allmaras interface () combines a Level Set interface with a Turbulent Flow, Spalart-Allmaras interface and a Rotating Domain.
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The Turbulent Flow, v2-f interface () combines a Level Set interface with a Turbulent Flow, v2-f interface and a Rotating Domain.
Simulations using the Turbulent Two-Phase Flow, Level Set multiphysics interfaces are always time-dependent since the position of an interface almost always depends on its history.
Interface Properties
Turbulence Model
By default the Turbulence model type in the settings of the Turbulent Flow interface is set to RANS. A different turbulence model can be selected under Turbulence model.
In the CFD Module User’s Guide:
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Theory for the Two-Phase Flow Interfaces
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Theory for the Single-Phase Flow Interfaces
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Theory for the Level Set Interface