TOPOLOGY OPTIMIZATION FOR FLUID FLOW EMPLOYING LOCAL OPTIMALITY CRITERIA

Philip Sarstedt, Gerhard Kachel, Jörg Ettrich, Karl Bühler
2016 Proceedings of the VII European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016)   unpublished
We herein present a topology design method based on local optimality criteria which has been implemented in an open source Navier-Stokes solver for turbulent flows. Our method aims for the fast generation of geometry proposals in the early conceptual phase. To the best of our knowledge, this is the first local criteria approach utilizing a wall function turbulence model in order to consider turbulent flows. In order to allow for the growth as well as the shrinkage, or even the formation or
more » ... e formation or disappearance of structural features, a topological approach is chosen. By introducing a volume fraction parameter, we distinguish between fluid and solid properties in each control volume. The fluid-solid interface is represented by an immersed boundary method using a piecewise linear surface reconstruction.
doi:10.7712/100016.1864.5911 fatcat:eqxc5fwjanderd2cbvzaapj6dy