Can help me to correct the code for calculation for given condition of por_cr
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por_cr= 0.22;
por = (0.1,0.2,0.3,0.5,0.34,0.12,0.1)';
Gt = (20,21,21,28,23,25,14)';
Kt = (32,33,31,28,33,29,,34)';
Pe = (14,14.4,15,14,14.2,15.5,14)';
poisson = 0.5.*((Kt-2.*Gt./3)./(Kt + Gt./3));
c =8;
Khm = ((c.^2).*((1-por_cr).^2).*(Gt.^2).*Pe./(18*pi.*pi.*(1-poisson).^2)).^(1/3);
Ghm = ((5-4*poisson)./(5.*(2-poisson))).*(3.*(c.^2).*((1-por_cr).^2).*(Gt.^2).*Pe./(2*pi.*pi.*(1-poisson).^2)).^(1/3);
Z = (Ghm./6).*((9*Khm + 8*Ghm)./(Khm + 2*Ghm));
if por<=por_cr
Kdryh = (((por./por_cr)./(Khm +4*Ghm/3)) + ((1-por./por_cr)./(Kt + 4*Ghm/3))).^(-1) - 4.*Ghm./3;
Gdryh = (((por./por_cr)./((1-por_cr).*(Ghm +Z))) + ((1-por./por_cr)./(Gt+Z))).^(-1) + Z;
elseif por>=por_cr
Kdryh = (((1-por)./(1-por_cr)).*(1./(Khm + 4.*Ghm./3)) + ((por - por_cr)./(1 - por_cr))./(4.*Ghm./3)).^(-1) - 4.*Ghm./3;
Gdryh= (((1-por)./(1-por_cr)).*(1./(Ghm+Z)) + ((por-por_cr)./(Z.*(1-por_cr)))).^(-1) -Z;
end
Kdryh;
Gdryh;
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Accepted Answer
Torsten
on 2 Feb 2024
por_cr= 0.22;
por = [0.1,0.2,0.3,0.5,0.34,0.12,0.1]';
Gt = [20,21,21,28,23,25,14]';
Kt = [32,33,31,28,33,29,34]';
Pe = [14,14.4,15,14,14.2,15.5,14]';
poisson = 0.5.*((Kt-2.*Gt./3)./(Kt + Gt./3));
c =8;
Khm = ((c.^2).*((1-por_cr).^2).*(Gt.^2).*Pe./(18*pi.*pi.*(1-poisson).^2)).^(1/3);
Ghm = ((5-4*poisson)./(5.*(2-poisson))).*(3.*(c.^2).*((1-por_cr).^2).*(Gt.^2).*Pe./(2*pi.*pi.*(1-poisson).^2)).^(1/3);
Z = (Ghm./6).*((9*Khm + 8*Ghm)./(Khm + 2*Ghm));
for i = 1:numel(por)
if por(i)<=por_cr
Kdryh(i) = (((por(i)./por_cr)./(Khm(i) +4*Ghm(i)/3)) + ((1-por(i)./por_cr)./(Kt(i) + 4*Ghm(i)/3))).^(-1) - 4.*Ghm(i)./3;
Gdryh(i) = (((por(i)./por_cr)./((1-por_cr).*(Ghm(i) +Z(i)))) + ((1-por(i)./por_cr)./(Gt(i)+Z(i)))).^(-1) + Z(i);
else
Kdryh(i) = (((1-por(i))./(1-por_cr)).*(1./(Khm(i) + 4.*Ghm(i)./3)) + ((por(i) - por_cr)./(1 - por_cr))./(4.*Ghm(i)./3)).^(-1) -4.*Ghm(i)./3;
Gdryh(i)= (((1-por(i))./(1-por_cr)).*(1./(Ghm(i)+Z(i))) + ((por(i)-por_cr)./(Z(i).*(1-por_cr)))).^(-1) -Z(i);
end
end
Kdryh
Gdryh
5 Comments
Torsten
on 3 Feb 2024
Maybe something like this:
por_cr= 0.22;
por = [0.1,0.2,0.3,0.5,0.34,0.12,0.1]';
Gt = [20,21,21,28,23,25,14]';
Kt = [32,33,31,28,33,29,34]';
Pe = [14,14.4,15,14,14.2,15.5,14]';
poisson = 0.5.*((Kt-2.*Gt./3)./(Kt + Gt./3));
c =8;
Khm = ((c.^2).*((1-por_cr).^2).*(Gt.^2).*Pe./(18*pi.*pi.*(1-poisson).^2)).^(1/3);
Ghm = ((5-4*poisson)./(5.*(2-poisson))).*(3.*(c.^2).*((1-por_cr).^2).*(Gt.^2).*Pe./(2*pi.*pi.*(1-poisson).^2)).^(1/3);
Z = (Ghm./6).*((9*Khm + 8*Ghm)./(Khm + 2*Ghm));
Kdry1 = nan(size(por));
Kdry2 = Kdry1;
Gdry1 = Kdry1;
Gdry2 = Kdry1;
for i = 1:numel(por)
if por(i)<=por_cr
Kdry1(i) = (((por(i)./por_cr)./(Khm(i) +4*Ghm(i)/3)) + ((1-por(i)./por_cr)./(Kt(i) + 4*Ghm(i)/3))).^(-1) - 4.*Ghm(i)./3;
Gdry1(i) = (((por(i)./por_cr)./((1-por_cr).*(Ghm(i) +Z(i)))) + ((1-por(i)./por_cr)./(Gt(i)+Z(i)))).^(-1) + Z(i);
else
Kdry2(i) = (((1-por(i))./(1-por_cr)).*(1./(Khm(i) + 4.*Ghm(i)./3)) + ((por(i) - por_cr)./(1 - por_cr))./(4.*Ghm(i)./3)).^(-1) -4.*Ghm(i)./3;
Gdry2(i)= (((1-por(i))./(1-por_cr)).*(1./(Ghm(i)+Z(i))) + ((por(i)-por_cr)./(Z(i).*(1-por_cr)))).^(-1) -Z(i);
end
end
Kdry1
Kdry2
Gdry1
Gdry2
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