Lateral weir flow model using a curve fitting analysis


Muslu Y.

JOURNAL OF HYDRAULIC ENGINEERING-ASCE, vol.128, no.7, pp.712-715, 2002 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 128 Issue: 7
  • Publication Date: 2002
  • Doi Number: 10.1061/(asce)0733-9429(2002)128:7(712)
  • Title of Journal : JOURNAL OF HYDRAULIC ENGINEERING-ASCE
  • Page Numbers: pp.712-715

Abstract

A numerical approach is considered for flow over side weirs as a substantial part of distribution channels in irrigation systems and treatment units. The model is based on the energy principle and a curve-fitting technique. For this purpose, the side weir was divided into elementary strips to develop generalized equations for discharge and surface profile. The change in water surface elevation towards the weir crest and the inclination of the deflected flow over the weir were also taken into account. Dimensionless parameters were used and the normalized equations solved to obtain the hydraulic parameters of side weirs. The results were plotted to determine general relationships based on the curve-fitting technique. A practical application of the derived equations to obtain hydraulic parameters of side weirs is performed using literature data.