Evaluation of the Arbitrary Lagrangian-Eulerian method (ALE) for the simulation of Fluid Structure Interaction during aircraft ditching events (Masterarbeit)

Abstract

This work is dedicated for the assessment of the Arbitrary Lagrangian Method (ALE) for numerical ditching simulations using the LS-DYNA code. In the scope of this investigation the internal DLR software for structural analysis called PANDORA was used. The main part of the work is related to a benchmark analysis using four consecutive structural models in terms of complexity during water impact: a vertical drop-test with a rigid sphere, a simple flat panel and a double-curved panel in a guided motion and a rigid generic aircraft model in free motion. Findings and general results are discussed.