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Published in:
2019 | OriginalPaper | Chapter
10. The Influence of Secondary Flow on the Dynamics of Vibrating Tubes
Author : J. P. Meijaard
Published in: IUTAM Symposium on Solver-Coupling and Co-Simulation
Publisher: Springer International Publishing
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Abstract
The secondary flow inside a round tube undergoing motion perpendicular to its longitudinal axis is considered. The motion of the fluid is modelled by a discretization of the secondary flow and is simulated separately from the motion of the tube, which is modelled as a flexible multibody system. The interaction between the two problems is taken into account by means of co-simulation. The Navier–Stokes equations are simplified and linearized, and then discretized with a spectral expansion in the circumferential direction and with finite elements in the radial direction. A tube rotating with a constant angular velocity and a tube undergoing a harmonic vibration are considered as examples. The main objective of this study is to show that the proposed co-simulation is actually feasible for this problem.