IRP = 4 Grant's curves (Grant, 1977)
Last updated 10 months ago
krl=S^4{k_{rl}}\quad = \quad {\hat S^4}krl=S^4
krg=(1 − S^)2 (1 − S^2){k_{rg}}\quad = \quad {\left( {1\; - \;\hat S} \right)^2}\;\left( {1\; - \;{{\hat S}^2}} \right)krg=(1−S^)2(1−S^2)
where
S^=(Sl − Slr)(Sl − Slr)\hat S = \frac{{\left( {{S_l}\; - \;{S_{lr}}} \right)}}{{\left( {{S_l}\; - \;{S_{lr}}} \right)}}S^=(Sl−Slr)(Sl−Slr)
with Slr = RP(1); Sgr = RP(2)
Restrictions: RP(1) + RP(2) < 1
