MATEC Web Conf.
Volume 345, 202120th Conference on Power System Engineering
|Number of page(s)||14|
|Published online||12 October 2021|
Validation of large eddy simulation of flow behind a circular cylinder
1 Institute of Thermomechanics of the Czech Academy of Sciences, v.v.i., Doješkova 1402/5, Prague 182 00, Czech Republic
2 University of Chemistry and Technology, Prague, Department of Mathematics, Technická 5, Prague 166 28, Czech Republic
3 University of West Bohemia, Pilsen, Department of Power System Engineering, Universitní, Pilsen 301 00, Czech Republic
* e-mail: email@example.com
The flow in the wake behind a circular cylinder in a cross-flow at Reynolds number of 4815 was studied both experimentally and via mathematical modeling. The mathematical model was performed as a Large Eddy Simulation (LES), while the experiments were carried out using the time-resolved variant of the Particle Image Velocimetry (PIV) method. Both the simulation and experiment took into account the dynamical aspects of the studied phenomenon, which enabled a detailed validation of the mathematical model. The overall statistical properties of the simulated flow were validated via comparing the time-averaged measured and computed velocity and vorticity fields. To validate the dynamical behavior, the velocity spectra were examined first. Next, the Proper Orthogonal Decomposition (POD) of the spatio-temporal velocity data was performed on both the experimental and numerical data and a comparison of the obtained energetic modes was carried out. All the performed validations have shown a satisfactory agreement between the simulation and the experiment.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.