Note: This is the entire set of equations from Report DOE/ER/82329-2, presented here without explanation. If the user does not have the TrueType font "SYMBOL" installed on the user's computer, not all the variables may show properly. It may be useful to print out the set before reading the other pages.
rq = relative flow, Q/Ks, (dimensionless), Q = flow (m/s), Ks = saturated conductivity (m/s), H = total head (m), and x = vertical displacement (m).
Dx = x2-x1, the vertical separation between grid cells centered at x2 > x1 (m), with the vertical axis positive upwards, and Y1 and Y2 are the matric suctions at x1 and x2, respectively.
Kv = the Darcian relative conductivity mean for vertical flow (dimensionless).
where Dx = (xi+1-xi-1)/2
where kr(x1) = kr1, kr(x2) = kr2, Y (x1) = Y1, and Y (x2) = Y2, given the relationship kr(Y ).
(m/s) , the saturated conductivity of the composite relation.
kr = unsaturated relative conductivity (dimensionless), l = fitting parameter (1/m), y = matric suction (m), and yd = displacement pressure (m).
[23] , where a = kr1, b = , u = l Dx , Dx = x2 x1
[30] , NOTE: I believe this equation is in error; click here for a more accurate form.
[65] , NOTE: I believe this equation is in error; click here for a more accurate form.