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A study of non-linearity in rainfall-runoff response using 120 UK catchments (2016)
Journal Article
Mathias, S., McIntyre, N., & Oughton, R. (2016). A study of non-linearity in rainfall-runoff response using 120 UK catchments. Journal of Hydrology, 540, 423-436. https://doi.org/10.1016/j.jhydrol.2016.06.039

This study presents a catchment characteristic sensitivity analysis concerning the non-linearity of rainfall-runoff response in 120 UK catchments. Two approaches were adopted. The first approach involved, for each catchment, regression of a power-law... Read More about A study of non-linearity in rainfall-runoff response using 120 UK catchments.

Approximate solutions for Forchheimer flow during water injection and water production in an unconfined aquifer (2016)
Journal Article
Mathias, S., & Moutsopoulos, K. (2016). Approximate solutions for Forchheimer flow during water injection and water production in an unconfined aquifer. Journal of Hydrology, 538, 13-21. https://doi.org/10.1016/j.jhydrol.2016.03.048

Understanding the hydraulics around injection and production wells in unconfined aquifers associated with rainwater and reclaimed water aquifer storage schemes is an issue of increasing importance. Much work has been done previously to understand the... Read More about Approximate solutions for Forchheimer flow during water injection and water production in an unconfined aquifer.

Simulation of three-component two-phase flow in porous media using method of lines (2016)
Journal Article
Goudarzi, S., Mathias, S., & Gluyas, J. (2016). Simulation of three-component two-phase flow in porous media using method of lines. Transport in Porous Media, 112(1), 1-19. https://doi.org/10.1007/s11242-016-0639-5

Numerical simulation of compositional flow problems commonly involves the use of 1st- or 2nd-order Euler time stepping. Method of lines (MOL), using highly accurate and efficient ODE solvers, is an alternative technique which, although frequently app... Read More about Simulation of three-component two-phase flow in porous media using method of lines.