Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 15, 2018 - October 16, 2018
This paper describes a level set-based topology optimization method for unsteady state Navier-Stokes flow. Many methods for topology optimization applying to fluid mechanics have focused on steady state while most of all fluid phenomena should be considered as unsteady state problem. Therefore, fluid flow problem for topology optimization method should also be solved as unsteady state problem. In addition, wall treatment of fluid field such as velocity has to be considered as another theory such as boundary layer problem. In order to consider wall treatment, applying an immersed boundary method to boundary condition on wall is an effective method so that we apply the immersed boundary method on wall of optimized structure in our method. As a result, we can obtain the optimized structure by applying our method. Some examples are provided and the effectiveness of the method is discussed.
