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dx3/dt=-k31x3-k32x3+k43x4+ k53x5+k63x6+k73x7+k83x8
dx4/dt=-k41x4-k42x4-k43x4+ k54x5+k64x6+k74x7+k84x8
dx5/dt=-k51x5-k52x5-k53x5-k54x5-k56x52-k57x52+k65x6+k75x7+k85x8
dx6/dt=-k61x6-k62x6-k63x6-k64x6-k65x6-k67x62+k56x52+k76x7+k86x8
dx7/dt=-k71x7-k72x7-k73x7-k74x7-k75x7-k76x7-k78x72+k57x52+k67x62+k87x8
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430        40.00         0.0349         0.0858         0.1827         0.3058         0.1203         0.0805         0.1476         0.0384         0.0039
430        60.00         0.0423         0.1250         0.2086         0.2950         0.1005         0.0624         0.1180         0.0428         0.0053
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function fourLumpK_VR440
clc;
clear all;
format long;
fourLumpData=[...
0        69.33        21.33        7.66        1.76
15        52.96        26.45        17.84        3.18
30        49.9        27.61        18.29        3.92
45        39.03        28.51        27.93        5
60        33.45        25.4        34.49        7.1
90        25.76        24.99        42.38        7.48
];
% vector of yields/%
Xexp=fourLumpData(2:6,2:5);
% oil residence time,unit: min
time= fourLumpData(2:6,1)';  

% initiate parameter for optimization
X0=fourLumpData(1,2:5);
%      k1      k2     k3      k4     k5  
K0 =[0.0014 0.0012 0.0005 0.0020 0.0013];
lb=0;
ub=inf;

%¼ÆÊ±¿ªÊ¼ÄâºÏ
tic;

K=lsqnonlin(@objFun,K0,lb,ub,[],X0,Xexp,time);
% ÄâºÏ½á¹ûÏÔʾ
disp(K)
% ¼ÆÊ±½áÊø
disp('ºÄʱ£º');
toc;
% ±£´æÄâºÏ½á¹û
save fourLumpK_VR440;

% ¼ìÑé-----------------------------------------------
tf=max(time);
tspan=[0:1:tf];
[nr,nc]=size(Xexp);
XcalFinal=zeros(nr,nc);
for i=1:nr
        [t,Xcal]=ode45(@modelEquation,tspan,X0,[],K,tf);
    n=find(t>=time(i));
        m=n(1);
        %ÏßÐÔÄÚ²å
        Xc=Xcal(m,-(Xcal(m,-Xcal(m-1,)/(t(m)-t(m-1))*(t(m)-time(i));
        XcalFinal(i,=Xc;
    save XcalFinal
end
objX = abs((XcalFinal - Xexp)./100).^2;
F=sum(sum(objX))^0.5;
error=(XcalFinal - Xexp)
avrError=sum(abs(error))/nr
relatError=(XcalFinal - Xexp)./Xexp*100
avrRelError=sum(abs(relatError))/nr

rou_2=1-sum((XcalFinal - Xexp).^2)./sum(Xexp.^2)
Fc_11=(sum(XcalFinal.^2)-sum((XcalFinal - Xexp).^2))/5./(sum((XcalFinal - Xexp).^2)/(5*4-5))

% ²Ð²îͼ-----------------------------------------------------------
figure(1);
clf;
hold on;
plot(XcalFinal(:,1),Xexp(:,1),'m*');
plot(XcalFinal(:,2),Xexp(:,2),'r*');
plot(XcalFinal(:,3),Xexp(:,3),'b*');
plot(XcalFinal(:,4),Xexp(:,4),'k*');
legend('βÓÍ','À¯ÓÍ','ÇáÓÍ','Æø+½¹'); % ͼÐÎ×¢½â
xlabel('Xcal,%'); % xÖá×¢½â
ylabel('Xexp,%'); % yÖá×¢½â
% title('Xexp-Xcal'); % ͼÐαêÌâ
hold on;
x=0:0.1:80;
plot(x,x,'k-');

% y-tͼÐÎÏÔʾ
figure(2);
clf;
hold on;
tf=max(time);
tspan=[0:1:tf];
[t,XcalFinal]=ode45(@modelEquation,tspan,X0,[],K,tf);
plot(t,XcalFinal(:,1),'m');
plot(t,XcalFinal(:,2),'r');
plot(t,XcalFinal(:,3),'b');
plot(t,XcalFinal(:,4),'k');
legend('βÓÍ','À¯ÓÍ','ÇáÓÍ','Æø+½¹'); % ͼÐÎ×¢½â
xlabel('t/min'); % xÖá×¢½â
ylabel('X/%'); % yÖá×¢½â
% title('X--t'); % ͼÐαêÌâ
hold;

%»æÖÆÊÔÑéµã
figure(2);
hold on;
plot(fourLumpData(:,1)',fourLumpData(:,2),'m*');
plot(fourLumpData(:,1)',fourLumpData(:,3),'r*');
plot(fourLumpData(:,1)',fourLumpData(:,4),'b*');
plot(fourLumpData(:,1)',fourLumpData(:,5),'k*');

% -----------------------------------------------------------------
function F = objFun(K,X0,Xexp,time)
tf=max(time);
tspan=[0:1:tf];
[nr,nc]=size(Xexp);
XcalFinal=zeros(nr,nc);
for i=1:nr
        [t,Xcal]=ode45(@modelEquation,tspan,X0,[],K,tf);
    n=find(t>=time(i));
        m=n(1);
        %ÏßÐÔÄÚ²å
        Xc=Xcal(m,-(Xcal(m,-Xcal(m-1,)/(t(m)-t(m-1))*(t(m)-time(i));
        XcalFinal(i,=Xc;
end
objX = abs((XcalFinal - Xexp)./100).^2;
F=sum(sum(objX))^0.5;
error=(XcalFinal - Xexp)
avrError=sum(abs(error))/nr
avrErr=sum(avrError)/nc
relatError=(XcalFinal - Xexp)./Xexp*100
avrRelError=sum(abs(relatError))/nr
avrRelErr=sum(avrRelError)/nc
K

function dxdt = modelEquation(t,X,K,tf)
f1=-(K(1)+K(2)+K(3))*X(1);
f2= K(1)*X(1)-(K(4)+K(5))*X(2);
f3= K(2)*X(1)+K(4)*X(2);
f4= K(3)*X(1)+K(5)*X(2);
dxdt = [f1;f2;f3;f4];
8Â¥2014-09-04 20:20:33
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

×î×Ô˽µÄÅ®ÈË

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ÒýÓûØÌû:
8Â¥: Originally posted by ×î×Ô˽µÄÅ®ÈË at 2014-09-04 20:20:33
ÄãºÃ£¬ÄÜÂé·³Äã°ïÎÒ¿´Ò»ÏÂÎÒµÄÏÂÃæÕâ¸ö³ÌÐòΪʲôÔËÐв»ÁËÂ
function fourLumpK_VR440
clc;
clear all;
format long;
fourLumpData=;
% vector of yields/%
Xexp=fourLumpData(2:6,2:5);
% oil residen ...

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  • ¸½¼þ 1 : fourLumpK_VR440.m
  • 2014-09-04 20:22:37, 3.21 K
9Â¥2014-09-04 20:22:41
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