-
From the
Flow section of the
action bar,
click
Velocity Inlet
.
- Optional:
Enter a descriptive
Name.
-
Select the surface where fluid enters the domain.
-
From the
Direction specification options, select a
vector type:
Option | Description |
---|
Normal |
An inlet vector that is normal to the selected surface at
all points on the surface. When you choose this option, you must also specify
the
Magnitude of the normal vector.
|
---|
Cartesian Vector |
A flow velocity vector that you define directly in terms of
its X-, Y-, and Z-components in Cartesian axis system.
|
---|
Cylindrical Vector |
A flow velocity vector that you define directly in terms of
its radial (R), tangential (T), and axial (Z) components in a cylindrical
axis
system. |
---|
For Cartesian or cylindrical definition, you can also specify the Axis system
definition to align the inlet vector with a different axis
system.
Option | Description |
---|
Global |
The global axis system. |
---|
Local |
A local axis system specified as a component of the part
definition. You can select the triad for the local axis system by clicking it
in the 3D area. If no local axis system is available, you must define one in a
part definition app. |
---|
Specify |
Orient the inlet vector directly by right-clicking the
feature triad glyph on the model and selecting an orientation tool.
|
---|
-
Specify the
Velocity and
Temperature of the fluid entering the fluid
domain.
For either parameter, you can use a single uniform value, spatially varying mapped data, or JavaScript user subroutines that define
the value programmatically.
In addition, you can apply a scale factor or amplitude to the
value. Click
, then specify either or both of the following:
Option | Description |
---|
Scale factor |
A multiplier that is applied to the magnitude of the value
in the step. |
---|
Amplitude |
Name of the amplitude curve that defines the magnitude of
the value during the step.
|
---|
-
Describe the turbulent flow at this inlet by selecting a
Turbulence specification and customizing its
settings.
The specific turbulence customization settings that appear depend
on your specification choice and on the turbulence model you chose in the
physics definition. For a full description of all available turbulence
settings, see
Initial Turbulence Options.
-
For multispecies flow analyses, you can also specify the mass fraction of the
materials flowing through the inlet. For more information, see Defining Mass Fractions at an Inlet.
-
For a multiphase simulation using the Volume of Fluid (VOF) method, you can
also specify the material distribution flowing through the inlet. In addition,
gravity waves can be specified as part of the material distribution. For more
information, see Defining Volume Fractions at an Inlet
-
If surface-to-surface radiation is enabled in the fluid physics, you can
specify the radiation behavior at the inlet. For more information, see Defining Surface-to-Surface Radiation Behavior at an Inlet.
-
If particle physics are active, you can specify how the particles interact with
the inlet. For more information, see Defining a Particle Boundary.
-
Click
OK.
|