Realistic numerical simulation of chlorine decay in pipes


Ozdemir O. N. , Ger A.

WATER RESEARCH, vol.32, no.11, pp.3307-3312, 1998 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 32 Issue: 11
  • Publication Date: 1998
  • Doi Number: 10.1016/s0043-1354(98)00107-9
  • Journal Name: WATER RESEARCH
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.3307-3312
  • Keywords: chlorine, decay, diffusion, numerical simulation, water supply network, MODEL
  • Gazi University Affiliated: Yes

Abstract

The objective of the present study is to develop a numerical mass transport model that can simulate chlorine disappearance mechanisms under low flow conditions. The model accounts for axial convection and radial diffusion in a pipe under turbulent, transitional and laminar flow regimes and uses realistic velocity profiles. The bulk decay coefficient assumed to be constant in previous models is taken to be a function of residence time of water in pipes based on the findings of the experiments by laboratory tests. Furthermore, a methodology is introduced to convert simple one dimensional model solutions into refined results as if they were calculated by a much more precise two dimensional model. (C) 1998 Elsevier Science Ltd. All rights reserved.