Numerical Methods for Fluid-Structure Interaction

  Copyright: © Max von Danwitz

Lecture “Numerical Methods for Fluid-Structure Interaction” is an elective course suitable for students in the Master programs “Computational Engineering Science”, “Simulation Sciences”, “General Mechanical Engineering”, and others.

 

Instructors

Lecture: Dipl.-Ing. Norbert Hosters

Exercise: Patrick Antony, M.Sc.

Content

Think of a flag moving in the wind or blood flowing in arteries in order to get an idea of what fluid-structure-interaction phenomena are. They are characterized by an interplay between deforming structure and a neighboring fluid. On the one hand, the structure deforms as a result of the load exerted by the flow field. On the other hand, this deformation affects the flow field so that the load on the structure changes. For the modeling and simulation of FSI phenomena, neither the fluid nor the solid can be considered separately.

The module consists of a lecture with 2 SWS and an exercise with 1 SWS, and carries 5 ECTS points.

Topics

• Needed modifications in governing equations for fluid and structural mechanics,
• monolithic vs. partitioned approaches,
• strong vs. weak coupling methods,
• matching vs. non-matching interface discretizations, and
• various mesh deformation methods.
  
• Exercise: Program your own small code examples as a means of gaining experience with the method.

Literature

1. Y. Bazilevs, K. Takizawa, and T. Tezduyar, Computational Fluid-Structure Interaction, Wiley, 2013.

Examination

Points are awarded during the semester based on assignments in the framework of the exercise. A 30-minute oral exam will be offered on several dates in February and March.