The advantages of the CFD software Ansys CFX in the flow field calculation are described. However

a possible problem may exist in a certain dynamic flow field calculation method of the software

i.e. there is an geometry identification error between CAD and CAE. In order to solve this problem

the Workbench geometric processing module

set parameter module and scripting command are integrated. Moreover

the actual dynamic flow field in arc interrupter of a high voltage circuit breaker is calculated

and the result verifies the feasibility and rationality of the proposed method. It is concluded that this method can effectively avoid the geometry identification error between two near calculation steps in the dynamic flow field calculation

extend the function of parameter set to achieve parametric design of relevant motion component

and provide a reference for common optimization problem.