EESC07H3 Lecture Notes - Flow Velocity, Hydraulic Conductivity, V Speeds
14 Oct 2016
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6 or 7 assignments (20%, 10% each) 2 midterms (30%) & 1 final (50%) cumulative: calculations & true/false & multiple choice & essays, no eqn sheets for 1st midterm. Grou(cid:374)d (cid:449)ater = (cid:862)(cid:271)lue gold(cid:863) fro(cid:373) (cid:271)e(cid:374)eath earth surfa(cid:272)e. Huge diff btw water use & sustainable water management (scientific) Global water usage: 60-70% agriculture, 10-20% industry, 10-20% domestic. Romen aqueducts build to manage surface water in ancient times. Henry darcy set the laws of groundwater flow 155 yrs back: carried out experiments in 1856 on fountain in dijon, france. Work of hydraulic engineer henry darcy (1856: an empirical law: it works, but not conceived on theoretical basis, extremely powerful law, q = -k (delta h/delta l) a. Q = flow rate: volume / unit time (l^3/t) Delta h/delta l = hydraulic gradient (i) normally +ve for +ve flow. A = cross-sectional area perpendicular to flow l^2. K = hydraulic conductivity or coefficient of permeability.
