Study of a passive scalar transport in a pipeline x-junction

Abstract

The transport processes of a passive scalar generated in the mixing of two fluids in a pipeline x-junction are analysed in this paper. The turbulent flow field is computed for the merging of streams using a method of computational fluid dynamics. Two- and three-dimensional simulations are achieved employing both Cartesian and BFC co-ordinates. The numerical model is validated from an experimental set-up. Different parameters are measured for various operating conditions. The influence of the angle between pipe inlets is studied, to establish the optimal condition where the passive scalar concentration in both outlets is similar.

Keywords:

• tracer experiments
• pipes
• potable water
• x-junction

Acknowledgements

The authors acknowledge the valuable experimental data of Cecilia Chavez.