Publication result detail

Investigation of turbulent flow in an open channel with transversal ribs

PŘÍHODA, J.; ŠULC, J.; SEDLÁŘ, M.; ZUBÍK, P.

Original Title

Investigation of turbulent flow in an open channel with transversal ribs

English Title

Investigation of turbulent flow in an open channel with transversal ribs

Type

Paper in proceedings (conference paper)

Original Abstract

Modelling of turbulent flow in an open channel with transversal ribs on its bottom was concentrated particularly on the development of flow separation behind ribs and on the corresponding changes of free surface. Further, the pressure drag of individual ribs was investigated including their dependence on the rib spacing, as well as the origin of secondary flow near the side walls of the channel behind ribs. Numerical results obtained by the software ANSYS CFX 11.0 were compared with experiments carried out by means of LDA and PIV techniques in free-surface water channel 200x200 mm with one and/or two transversal ribs 10xl0 mm with various spacing.

English abstract

Modelling of turbulent flow in an open channel with transversal ribs on its bottom was concentrated particularly on the development of flow separation behind ribs and on the corresponding changes of free surface. Further, the pressure drag of individual ribs was investigated including their dependence on the rib spacing, as well as the origin of secondary flow near the side walls of the channel behind ribs. Numerical results obtained by the software ANSYS CFX 11.0 were compared with experiments carried out by means of LDA and PIV techniques in free-surface water channel 200x200 mm with one and/or two transversal ribs 10xl0 mm with various spacing.

Keywords

numerical modelling of turbulent flow, open channel, transversal ribs, LDA, PIV

Key words in English

numerical modelling of turbulent flow, open channel, transversal ribs, LDA, PIV

Authors

PŘÍHODA, J.; ŠULC, J.; SEDLÁŘ, M.; ZUBÍK, P.

RIV year

2010

Released

22.10.2008

Publisher

Ústav termomechaniky AVČR

Location

Praha

ISBN

978-80-87012-14-7

Book

Colloquium Fluid Dynamics 2008

Pages from

47

Pages to

48

Pages count

8

BibTex

@inproceedings{BUT33669,
  author="Jaromír {Příhoda} and Jan {Šulc} and Milan {Sedlář} and Pavel {Zubík}",
  title="Investigation of turbulent flow in an open channel with transversal ribs",
  booktitle="Colloquium Fluid Dynamics 2008",
  year="2008",
  pages="47--48",
  publisher="Ústav termomechaniky AVČR",
  address="Praha",
  isbn="978-80-87012-14-7"
}