unit

SysPhSLibrary and ISO-80000 ModelLibrary: Some ValueType names and Unit symbols are not Modelica-friendly

Webel vs SysPhS-1.1: Annex A.5: Humidifier: Where ValueTypes involving litre are defined, the Unit symbol "L" is used rather than the Modelica-preferred "l" (in combination with an explicit additional unit converter).

Modelica: Units: Uses 'l' for litre, rather than 'L'.

Webel vs SysPhS-1.1: Annex A.5: Humidifier: The water temperature from TemperatureIncreaseConstraint and HeatingCalculationConstraint starts at 0 °C (should probably be the environment temperature 20 °C). Needs an additional parameter and initial value.

Webel vs SysPhS-1.1: Annex A.5: Humidifier: Where custom ValueTypes are defined, Modelica-friendly Unit symbols are used. Examples: "m3" not "m^3"; "degC" not "°C"; "J/(K.L)" (full stop as multiplier) not "J/(K⋅L)"; (EXCEPT "L" for litre not "l").

The following Modelica code corresponds to Figure 28. It has a type Force, which extends Real, and the unit symbol N assigned to it.

Source

Modelica data types can be subtyped to add a unit symbol. The interpretation of this symbol is not defined in Modelica.

Source

Subscribe to unit

Site looks mangled? Get help here

We are Australia's Systems Modeling Language (SysML^®) and Model-Based Systems Engineering (MBSE) specialists!

Catch our SysML/MBSE course Early Bird Deal 30% off all courses fully booked by 31st May 2025!

SysMLv1 slide set PDFs now available for purchase!

Home of the Webel Parsing Analysis recipe for Model-Based Systems Engineering with SysML^®

Visit our Client showcase