Experimental and Numerical Modelling of Turbulent Flow over an Inclined Backward-Facing Step in an Open Channel

  • Jaromir Prihoda
  • Pavel Zubik
  • Jan Sulc
  • Milan Sedlar
Keywords: open channel flow, inclined backward-facing step

Abstract

The contribution deals with the experimental and numerical modelling of the turbulent flow over an inclined backward-facing step in an open water channel. The modelling was carried out in the wide range of the Froude number covering the subcritical, supercritical and near critical regimes as well. The study was concentrated particularly on the development of flow separation and on changes of free surface. Numerical results obtained using the commercial software ANSYS CFX 12.0 for the two-equation SST model and the EARSM model were compared with experimental data obtained by means of PIV and LDA measuring techniques.

Author Biographies

Jaromir Prihoda

Institute of Thermomechanics AS CR v.v.i., Praha, Czech Republic

Pavel Zubik

Institute of Hydraulic Structures, Faculty of Civil Engineering, Brno University of Technology, Brno, Czech Republic

Jan Sulc

Institute of Hydraulic Structures, Faculty of Civil Engineering, Brno University of Technology, Brno, Czech Republic

Milan Sedlar

SIGMA – Research and Development Institute, Lutin, Czech Republic

Published
2012-12-31
How to Cite
Prihoda, J., Zubik, P., Sulc, J., & Sedlar, M. (2012). Experimental and Numerical Modelling of Turbulent Flow over an Inclined Backward-Facing Step in an Open Channel. Communications - Scientific Letters of the University of Zilina, 14(4A), 6-12. Retrieved from http://journals.uniza.sk/index.php/communications/article/view/784
Issue
Vol 14 No 4A (2012)
Section
Articles