Framework for adaptive fluid-structure interaction with industrial applications. (1st January 2013)

• Record Type: Journal Article
• Authors: Jansson, Johan; Degirmenci, Niyazi Cem; Hoffman, Johan
• Is Part Of: International journal of materials engineering innovation. Volume 4:Number 2(2013)
• Page Start: 166
• Page End: 186
• Publication Date: 2013-01-01
• Subjects: high performance computing -- fluid structure interaction -- adaptive mesh refinement; Materials science -- Periodicals; Materials -- Research -- Periodicals; Materials -- Technological innovations -- Periodicals; 620.11
• Languages: English
• ISSNs: 1757-2754

Abstract

We present developments in the Unicorn-HPC framework for unified continuum mechanics, enabling adaptive finite element computation of fluid-structure interaction, and an overview of the larger FEniCS-HPC framework for automated solution of partial diffential equations of which Unicorn-HPC is a part. We formulate the basic model and finite element discretisation method and adaptive algorithms. We test the framework on a 2D model problem consisting of a flexible beam in channel flow, and to illustrate the capabilities of the computational framework, we show two application examples from industry and medicine. We simulate a flexible mixer plate in turbulent flow in an exhaust system where the target output is aeroacoustic quantities. The second example is a self-oscillating vocal fold configuration, where the ultimate goal is to predict how the voice is affected by physiological changes from aerodynamics. Here we give the displacement signal of a point on the folds.