%0 Journal Article
	%A Rajeev Ranjan Sahay
	%D 2013
	%J International Journal of Geological and Environmental Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 74, 2013
	%T Predicting Dispersion Coefficient in Free-Flowing Zones of Rivers by Genetic Programming
	%U https://publications.waset.org/pdf/9996951
	%V 74
	%X Transient storage zones along the flow paths of rivers have great influence on the dispersion of pollutants that are either accidentally or otherwise led into them. The speed with which these pollution clouds get transported and dispersed downstream is, to a large extent, explained by the longitudinal dispersion coefficients in the free-flowing zones of rivers (Kf). In the present work, a new empirical expression for Kf has been derived employing genetic programming (GP) on published dispersion data. The proposed expression uses few hydraulic and geometric characteristics of a river that are readily available to field engineers. Based on various performance indices, the proposed expression is found superior to other existing expression for Kf.

	%P 130 - 135