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

doi:10.26552/com.C.2012.4A.6-12

Communications (Dec 2012)

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

Affiliations

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

DOI: https://doi.org/10.26552/com.C.2012.4A.6-12
Journal volume & issue: Vol. 14, no. 4A
pp. 6 – 12

Abstract

Read online

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.

Published in Communications

ISSN: 1335-4205 (Print); 2585-7878 (Online)
Publisher: University of Žilina
Country of publisher: Slovakia
LCC subjects: Social Sciences: Transportation and communications; Technology: Engineering (General). Civil engineering (General): Transportation engineering
Website: https://komunikacie.uniza.sk/

About the journal

Abstract

Keywords