Verification and validation of computational fluid dynamics simulations of compound channel flow

M. S. Filonovich, R. Azevedo, Luis Rojas, J. B. Leal

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this study the verification and validation of a 2nd order turbulence closure model is performed for an experimental compound channel flow, where the velocity field was measured by a Laser Doppler Velocimeter. Detailed Explicit Algebraic Reynolds Stress Model (EARSM) simulation is reported. The Grid Convergence Index (GCI) approach proposed by Roache (1998) was adopted to evaluate the uncertainty associated to grid resolution. The velocity components, the turbulent kinetic energy (TKE) and the dissipation rate were used as variables of interest. The GCI results present low values for the streamwise velocity, TKE and dissipation rate, but higher values in what concerns vertical and spanwise velocities. This indicates that the mean primary flow has converged but the secondary flow field still depends on grid resolution. Based on GCI values distribution, the mesh was locally refined. Comparison of numerical and experimental results shows good agreement.

Original languageEnglish
Title of host publication34th IAHR Congress 2011 - Balance and Uncertainty
Subtitle of host publicationWater in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering
PublisherInternational Association for Hydro-Environment Engineering and Research (IAHR)
Pages4430-4437
Number of pages8
ISBN (Electronic)9780858258686
Publication statusPublished - Jan 1 2011
Event34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering - Brisbane, Australia
Duration: Jun 26 2011Jul 1 2011

Publication series

Name34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering

Conference

Conference34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering
CountryAustralia
CityBrisbane
Period6/26/117/1/11

Fingerprint

channel flow
Channel flow
computational fluid dynamics
Computational fluid dynamics
Computer simulation
Kinetic energy
kinetic energy
simulation
dissipation
Laser Doppler velocimeters
secondary flow
Secondary flow
flow field
Flow fields
Turbulence
laser
turbulence
index
rate

Keywords

  • CFD
  • Compound channel
  • EARSM
  • GCI
  • Validation
  • Verification

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Water Science and Technology
  • Environmental Science (miscellaneous)

Cite this

Filonovich, M. S., Azevedo, R., Rojas, L., & Leal, J. B. (2011). Verification and validation of computational fluid dynamics simulations of compound channel flow. In 34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering (pp. 4430-4437). (34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering). International Association for Hydro-Environment Engineering and Research (IAHR).

Verification and validation of computational fluid dynamics simulations of compound channel flow. / Filonovich, M. S.; Azevedo, R.; Rojas, Luis; Leal, J. B.

34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering. International Association for Hydro-Environment Engineering and Research (IAHR), 2011. p. 4430-4437 (34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Filonovich, MS, Azevedo, R, Rojas, L & Leal, JB 2011, Verification and validation of computational fluid dynamics simulations of compound channel flow. in 34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering. 34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering, International Association for Hydro-Environment Engineering and Research (IAHR), pp. 4430-4437, 34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering, Brisbane, Australia, 6/26/11.
Filonovich MS, Azevedo R, Rojas L, Leal JB. Verification and validation of computational fluid dynamics simulations of compound channel flow. In 34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering. International Association for Hydro-Environment Engineering and Research (IAHR). 2011. p. 4430-4437. (34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering).
Filonovich, M. S. ; Azevedo, R. ; Rojas, Luis ; Leal, J. B. / Verification and validation of computational fluid dynamics simulations of compound channel flow. 34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering. International Association for Hydro-Environment Engineering and Research (IAHR), 2011. pp. 4430-4437 (34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering).
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