Simcenter STAR-CCM+ How to set global parameters when launching a Simcenter STAR-CCM+ batch simulation?
2023-05-02T07:37:08.000-0400
Simcenter STAR-CCM+
Simcenter STAR-CCM+ Virtual Reality
Teamcenter Share
Simcenter Cloud HPC
Simcenter STAR-CCM+ Viewer
Simcenter STAR-CCM+ Application Specific Solutions
Summary
This article explains how parameters of an existing simulation file can be set when starting a simulation in batch mode.
Details
Simcenter STAR-CCM+ offers global parameters that allow users to define scalar and vector physical quantities (e.g. 120.0 K or [0.0, 1.0, 0.0] m) once and reuse them in multiple objects such as boundary conditions, mesh parameters, or geometry definitions. This feature can significantly save system resources compared to using a field function with a constant value, as the parameter value is not defined on every cell.
In the graphical user interface (GUI), the global parameters of the simulation file are located under Tools > Parameters where parameters can be created, modified and deleted to customize the simulation setup.
However, even if the simulation is run in batch without a GUI, parameters can be set using the -param argument in the command line used to start the job. For instance, by specifying the -param argument in the following command the InletVelocity and InitialPressure parameters can be defined before starting the simulation
In the graphical user interface (GUI), the global parameters of the simulation file are located under Tools > Parameters where parameters can be created, modified and deleted to customize the simulation setup.
However, even if the simulation is run in batch without a GUI, parameters can be set using the -param argument in the command line used to start the job. For instance, by specifying the -param argument in the following command the InletVelocity and InitialPressure parameters can be defined before starting the simulation
starccm+ -param InletVelocity 10.0m/s -param InitialPressure 2000Pa -batch run simulation.sim