Sunil Lilhare
Ansys Employee

Hello, if you want to automate the workflow of meshing and simulation for slight changes in the CAD, you can use parametric study of Ansys Workbench.
To know more about how to use parameters in Ansys Workbench, please refer to the link of a section of Ansys Fluent's User Guide given below.

Working with Parameters and Design Points (ansys.com)

"If you are not able to access the link, please refer to this forum discussion: How to access the ANSYS Online Help