liggghtsCommandModel execute command¶

Syntax¶

Defined in liggghtsCommmands dictionary.

liggghtsCommandModels
(
   execute
);
executeProps0
{
    command
    (
        run
        $couplingInterval
    );
    runFirst             switch1;
    runLast              switch2;
    runEveryCouplingStep switch3;
    runEveryWriteStep    switch4;
    verbose;
}

• command = LIGGGHTS command to be executed. Each word in a new line, numbers and symbols need special treatment (e.g. $couplingInterval will be replaced by correct coupling interval in the simulation)

• switch1 = (optional, default off) if the command is executed only at first time step

• switch2 = (optional, default off) if the command is executed only at last time step (requires switch1 to be off)

• switch3 = (optional, default off) if the command is executed at every coupling step (requires switch1 and switch2 to be off)

• switch4 = (optional, default off) if the command is executed at every writing step (requires switch1 to switch3 to be off)

• verbose = (normally off) for verbose run

Examples¶

liggghtsCommandModels
(
   execute
   execute
);
executeProps0
{
    command
    (
        run
        $couplingInterval
    );
    runFirst             off;
    runLast              off;
    runEveryCouplingStep on;
}
executeProps1
{
    command
    (
        write_restart
        noBlanks
        dotdot
        slash
        DEM
        slash
        liggghts.restart_
        timeStamp
    );
    runFirst             off;
    runLast              off;
    runEveryCouplingStep off;
    runEveryWriteStep    on;
}

Description¶

The execute liggghtsCommandModel can be used to execute a LIGGGHTS command during a CFD run. In above example execute_0 for instance executes “run $couplingInterval” every coupling step. $couplingInterval is automatically replaced by the correct number of DEM steps. Additionally, execute_1 executes “write_restart ../DEM/liggghts.restart_$timeStamp” every writing step, where $timeStamp is automatically set.

Restrictions¶

none

Related commands¶

liggghtsCommandModel