Numerical simulation of fly-ash transport in three sands of different particle-size distributions using HYDRUS-1D

0364764 - GFÚ 2012 RIV SK eng J - Journal Article
Kodešová, R. - Kapička, Aleš - Lebeda, J. - Grison, Hana - Kočárek, M. - Petrovský, Eduard
Numerical simulation of fly-ash transport in three sands of different particle-size distributions using HYDRUS-1D.
Journal of Hydrology and Hydromechanics. Roč. 59, č. 3 (2011), s. 206-216. ISSN 0042-790X. E-ISSN 1338-4333
R&D Projects: GA AV ČR IAA300120701
Institutional research plan: CEZ:AV0Z30120515
Keywords : sand * fly-ash migration * magnetic susceptibility * numerical simulation * attachment/detachment concept * filtration theory
Subject RIV: DK - Soil Contamination ; De-contamination incl. Pesticides
Impact factor: 0.340, year: 2011

Study is focused on the numerical modeling of fly-ash transport in three sands, which was experimentally studied in the laboratory. Sands were packed in glass cylinders with diameter of 5.52 cm and height of 18 cm. Sands were also packed in plastic cylinders with diameter of 30 cm and height of 40 cm. The fly-ash and pulse infiltrations were applied on the top of all cylinders. Visually observed and gravimetrically evaluated fly-ash migration in small cylinders corresponded to fly-ash mobility in large columns detected using the SM400 Kappameter. The HYDRUS-1D code was used to simulate observed fly-ash transport. Parameters of soil hydraulic functions were either obtained using the Tempe cells and the RETC program or estimated using numerical inversion of transient water flow data measured in both types of columns using HYDRUS-1D.
Permanent Link: http://hdl.handle.net/11104/0006565