Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Numerical Analysis of Wide-Angled Diffusers in Turbulent Flow
The mathematical model of steady turbulent flow in wide-angled conical diffusers is presented. Static pressure distribution resulting from the numerical solutions is more flattened than the experimental data, due to the underestimation of normal turbulent stresses. On the contrary, the shear stresses are generally overestimated: The opposing effects of the stresses counterbalance in the mean kinetic energy and momentum analysis. The spatial distribution of stream lines is well predicted as well as the detailed characteristics of recirculating region, as a result of the choice of the wall function. The discrepancies in the predictions of some quantities confirm the need to refine the turbulence modeling when recirculating regions are present, as in wide-angled diffusers.
Numerical Analysis of Wide-Angled Diffusers in Turbulent Flow
The mathematical model of steady turbulent flow in wide-angled conical diffusers is presented. Static pressure distribution resulting from the numerical solutions is more flattened than the experimental data, due to the underestimation of normal turbulent stresses. On the contrary, the shear stresses are generally overestimated: The opposing effects of the stresses counterbalance in the mean kinetic energy and momentum analysis. The spatial distribution of stream lines is well predicted as well as the detailed characteristics of recirculating region, as a result of the choice of the wall function. The discrepancies in the predictions of some quantities confirm the need to refine the turbulence modeling when recirculating regions are present, as in wide-angled diffusers.
Numerical Analysis of Wide-Angled Diffusers in Turbulent Flow
Sala, Riccardo (Autor:in) / Garuti, Gianni (Autor:in) / Vivarelli, Pier Luigi (Autor:in)
Journal of the Hydraulics Division ; 106 ; 629-647
01.01.2021
191980-01-01 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Turbulent Flow near Vertical Angled Fish Screen
| Online Contents | 2010
Turbulent Flow near Vertical Angled Fish Screen
| British Library Online Contents | 2010
Computational analysis of flow fields around flanged diffusers
| Online Contents | 2014
Computational analysis of flow fields around flanged diffusers
| Elsevier | 2013
| British Library Online Contents | 2002