Hi J,nGreat to hear you want to try out the Quasi-Newton Stabilization. This algorithm is only available when running System Coupling outside of Workbench using the new Command Line Interface (CLI) or the new GUI. Please have a look at this tutorial showing how to use the CLI. https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v202/en/sysc_tut/sysc_tut_oscplate_cli_fluent.html. You can find the new GUI in the start menu as shown below.n![](https://us.v-cdn.net/6032193/uploads/XIGE0U8YQ9DA/image.png" width=)
https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v202/en/sysc_ug/sysc_gen_scservice_dt_supplemental_iqnils.html. If you're using a python file to set up your System Coupling simulation, the following is an example command to turn on stabilization for DataTransfer 1 on CouplingInterface 1nDatamodelRoot().CouplingInterface['CouplingInterface 1'].DataTransfer['DataTransfer 1'].Stabilization.Option = 'Quasi-Newton'nIf you're using the GUI, stabilization is turned on as shown below.n![](https://us.v-cdn.net/6032193/uploads/CB8BXMWGKCJ7/image.png" width=)
https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v202/en/sysc_ug/sysc_gen_scservice_dt_supplemental_iqnils.html. If you're using a python file to set up your System Coupling simulation, the following is an example command to turn on stabilization for DataTransfer 1 on CouplingInterface 1nDatamodelRoot().CouplingInterface['CouplingInterface 1'].DataTransfer['DataTransfer 1'].Stabilization.Option = 'Quasi-Newton'nIf you're using the GUI, stabilization is turned on as shown below.n