ZURUECK HOCH VOR INHALT SUCHEN

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Proposing Institution

Institut fuer Mechanik ,Helmut-Schmidt-Universitaet Hamburg
Project Manager

Prof. Dr.-Ing. habil Michael Breuer
Holstenhofweg 85
22043 Hamburg
Abstract
The objective of the project and the related DFG-project together with TU Munich is to develop an optimized methodology for the simulation of transient fluid-structure interactions of lightweight flexible structures in turbulent wind flows. For the design of lightweight structures, the strong interaction with the turbulent highly vortical flow is crucial. For this purpose a dedicated partitioned FSI simulation methodology based on well established solvers for both disciplines and a coupling interface was developed and evaluated, taking the specific properties and the characteristic scales of both fields into account. The main achievements are:1. Robust, efficient and comprehensively validated coupling method between eddy-resolving methods (LES) and thin-walled flexible structures.2. First applications of the new FSI simulation methodology to an inflated membrane structure. In the new project the goals are as follows:With respect to physical/methodical issues a realistic description of the turbulent inflow conditions is urgently required. Since lightweight structures are mainly loaded by sporadically appearing strong wind gusts, a turbulence inflow generator will be developed which takes this highly dynamic load scenario into account. Different forms and strengths of the appearing wind gusts have to be taken into account and the effect on the flexible structures has to be analyzed in detail. Based on this entire methodology, detailed simulations and analyzes of realistic flexible structures exposed to turbulent wind conditions including strong gusts will be considered.

Impressum, Conny Wendler