Modelling Seminar Scientific Computing

Already at the topic assignment in May 2020, the 2nd modelling seminar started with good news for the students. Despite the Corona pandemic and the resulting problems in industry and business, two partners from these areas could be won. Now it was up to the students to familiarise themselves with the topics until the modelling week and to carry out the first implementations. Before the topics and results were presented in the final presentations on 29th October 2020, the students had to work in depth on their topics again during the modelling week that took place beforehand and complete the final simulations. Topics in this seminar were, for example, different calculation methods for spring simulation or the movement of a ship in free water.

In this seminar, the students were to investigate how the beam elements known from structural mechanics can be used to calculate deformations and stresses in springs. The aim was to compare this solution with a classical finite element method regarding accuracy and computation time. The focus in this seminar was on the calculation of stresses and how these compare to a mesh consisting of hexahedra.

The aim of this topic was to simulate the motion of a ship hit head-on by light waves in otherwise relatively calm conditions. The dynamics of the surrounding water, modelled by the Reynolds-averaged Navier-Stokes equation, and its interaction with the boat was handled by software provided by the industry partner. The students' subsequent task was to model the motion of the boat assuming a rigid body. The resulting system of ordinary differential equations then had to be solved with the Newmark method using various parameters.

Text: Maximilian Bauer, Coordinator Elite Graduate Program "Scientific Computing"