Semi-analytical model for slug test in unconfined aquifers

Monday, 14 December 2015
Poster Hall (Moscone South)
Luis Paulo Alves Silva1,2, Phoolendra K Mishra2 and Bwalya Malama3, (1)UFMG Federal University of Minas Gerais, Belo Horizonte, Brazil, (2)California State University Fullerton, Fullerton, CA, United States, (3)California Polytechnic State University San Luis Obispo, San Luis Obispo, CA, United States
We present mathematical model which describes three dimensional flow of water during slug test in saturated and unsaturated zone. Following Mishra and Neuman (2010), we consider four-parameter exponential model to describe soil-water characteristics curves. Furthermore, we represent the effect of oscillatory response in highly conductive aquifers as did Malama et al. (2011), correlating the oscillatory change in head inside of the well with the drawdown in the aquifer. We conclude by comparing developed model with existing models for analyzing slug tests.