Units
UNITS
T/HIS 9.4 onwards can automatically add unit information to graph labels and it can convert results from one unit system to another.
Each model in T/HIS can have a Unit System defined for it and a separate Unit System can be defined for displaying results. T/HIS will automatically convert results from the model Unit System to the display Unit System. T/HIS has 6 built in unit systems.
| Unit System name | Units |
| U1 | m, kg, s |
| U2 | mm, t, s |
| U3 | mm, kg, ms |
| U4 | mm, g, ms |
| U5 | ft, slug, s |
| U6 | m, t, s |
Setting the unit system for a model
To set the unit system for a model
| Keyword | second word | third word | fourth word | notes |
| units | model | n | U1 | Set the unit system for model 'n' to U1 |
| U2 | Set the unit system for model 'n' to U2 | |||
| U3 | Set the unit system for model 'n' to U3 | |||
| U4 | Set the unit system for model 'n' to U4 | |||
| U5 | Set the unit system for model 'n' to U5 | |||
| U6 | Set the unit system for model 'n' to U6 | |||
| all | as above | Set the unit system for all models |
Setting the DISPLAY unit system
To set the display unit system
| Keyword | second word | third word | notes |
| units | display | U1 | Set the display unit system to U1 |
| U2 | Set the display unit system to U2 | ||
| U3 | Set the display unit system to U3 | ||
| U4 | Set the display unit system to U4 | ||
| U5 | Set the display unit system to U5 | ||
| U6 | Set the display unit system to U6 |
Curve Axis units
By default T/HIS will automatically set the Unit System for any curves read from a model to those of the model. In addition to setting the curve Unit System, T/HIS will automatically set a unit type for the X and Y axis of the curve. These unit types are maintained through curve operations so that the correct units can be displayed for each curve.
The X and Y Axis units for a curve can be manually set if required.
| Keyword | second word | third word | additional words | notes | ||
| unit | cx | curve #1 | curve #2 to curve #n | ## | Unit name |
## ends the curve list
Set the X axis unit for curves |
| * | ## | Unit name |
## ends the curve list
Set the X axis unit for all curves |
|||
| cy | curve #1 | curve #2 to curve #n | ## | Unit name |
## ends the curve list
Set the Y axis unit for curves |
|
| * | ## | Unit name |
## ends the curve list
Set the Y axis unit for all curves |
|||
The Unit name can be any of the following
|
Time
|
Rotation
|
Momentum
|
Energy
Den
|
|
Energy
|
Rot Vel
|
Density
|
Mass Flow
|
|
Work
|
Rot Accel
|
Stress
|
Frequency
|
|
Temperature
|
Length
|
Strain
|
Power
|
|
Displacement
|
Area
|
Force
|
Thermal
Flux
|
|
Velocity
|
Volume
|
Moment
|
Force width
|
|
Accel
|
Mass
|
Pressure
|
Moment
width
|
|
Viscosity
|
Thermal Diffusivity
|
Vorticity
|
Q Criterion
|
|
Current
|
Vec Potential
|
Magnetic Flux Vec
|
Elec Field Vec
|
|
Conductivity
|
Curve Unit Systems
If a curve has been read in from any source other than a model then the Unit System can also be set.
| Keyword | second word | third word | additional words | notes | ||
| units | cu | curve #1 | curve #2 to curve #n | ## | Unit System name |
## ends the curve list
Set the Unit System for curves |
| * | ## | Unit System name |
## ends the curve list
Set the Unit System for all curves |
|||
Other UNIT options
If a CSV file is written out from within a FAST-TCF script (see FAST-TCF CURVE OUTPUT) then by default it will contain rows containing UNIT information for the curves if UNITS have been defined.
Some third party applications and scripts can not read T/HIS CSV files containing this additional UNIT information correctly. The following option can be added to FAST-TCF scripts to turn on and off the output of this additional information.
| Keyword | second word | third word | notes |
| unit | csv | on | Turns on the output of UNIT information to CSV files |
| off | Turns off the output of UNIT information to CSV files |