Next Article in Journal
Determination of Particles and Carcinogenic Compounds Emitted by Combustion of Diesel and Diesel:Biodiesel Blends
Previous Article in Journal
The Impact of Hot Metal Temperature on CO2 Emissions from BOF Steelmaking
Open AccessProceedings

An Experimental Study on the Propagation of the Pressure Fluctuations Induced in a Tube Array under Forced Vibration

Energy Department, Oviedo University, 33205 Oviedo, Spain
*
Author to whom correspondence should be addressed.
Presented at the 2nd International Research Conference on Sustainable Energy, Engineering, Materials and Environment (IRCSEEME), Mieres, Spain, 25–27 July 2018.
Proceedings 2018, 2(23), 1501; https://doi.org/10.3390/proceedings2231501
Published: 7 November 2018
Tube arrays subject to cross flow may exhibit large amplitude self-excited vibrations referred to as Fluidelastic Instability (FEI). Due to its potential for damaging the equipment in an extremely sort operational time, FEI is considered the most destructive mechanism within the flow induced vibration phenomena and has been extensively analysed in the literature in the past, however, the underlying mechanism for FEI onset remains unclear. A number of models, based on very different assumptions about the fluidmechal phenomenon has been developed with the common conclusion that the key factor for stability onset is in the relationship between tube motion and flow perturbation in terms of amplitude and phase. In the present study an experimental approach in a water channel especially designed and developed by the authors for the present investigation is proposed. The empirical set-up, consisting in a tube array in which one tube is forced to vibrate while pressure fluctuations due to is motion are monitored in several points of the array, allows to correlate tube motion and pressure perturbations. The FFT postprocess of those signals allows for the study of the perturbations propagation pattern and indeed in the understanding of the FEI phenomenon. Finally present experimental results will allow for the validation, adjust and improvement of a CFD model previously developed by authors.
Keywords: fluidelactic instability; flow-induced vibrations; fluid structure interaction fluidelactic instability; flow-induced vibrations; fluid structure interaction
MDPI and ACS Style

Tufiño, L.; Pedro, B.; Laine, G.; Parrondo, J. An Experimental Study on the Propagation of the Pressure Fluctuations Induced in a Tube Array under Forced Vibration. Proceedings 2018, 2, 1501.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop