Tube bundles

We calculate the vibration frequencies and damping ratio of cylinders and tube bundles subjected to axial and cross flow.

Study of a clamped-clamped cylinder in axial flow, with flutter or static divergence, depending on the flow speed.

Published in J. De Ridder, O. Doaré, J. Degroote, K. Van Tichelen, P. Schuurmans, and J. Vierendeels. Simulating the fluid forces and fluid-elastic instabilities of a clamped-clamped cylinder in turbulent axial flow. Journal of Fluids and Structures, 55:139–154, 2015. doi: 10.1016/j.jfluidstructs.2015.03.001.

Large eddy simulation (LES) or the gap vortex street in a tube bundle with axial flow.

Published in L. De Moerloose, P. Aerts, J. De Ridder, J. Degroote, and J. Vierendeels. Numerical investigation of large-scale vortices in an array of cylinders in axial flow. Journal of Fluids and Structures, 78:277–298, 2018. doi: 10.1016/j.jfluidstructs.2018.01.002.

Prediction of the fretting wear in a wire-wrapped tube bundle with axial flow.

Published in H. Dolfen, J. De Ridder, L. Brockmeyer, E. Merzari, G. Kennedy, K. Van Tichelen, and J. Degroote. A multi-stage approach of simulating turbulence induced-vibrations in a wire-wrapped tube bundle for fretting wear prediction. Journal of Fluids and Structures, 109(103460):1–27, 2022. doi: 10.1016/j.jfluidstructs.2021.103460.

Enlarged deformation of a silicone segment of a tube in a bundle with axial flow, as a result of the gap vortex street.

Published in H. Dolfen, F. Bertocchi, M. Rohde, and J. Degroote. Vibrations in a 7-rod bundle subject to axial flow: simulations and experiments. Nuclear Engineering and Design, 353(110227):1–12, 2019. doi: 10.1016/j.nucengdes.2019.110227.