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authorpriyanka2015-06-24 15:03:17 +0530
committerpriyanka2015-06-24 15:03:17 +0530
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+//clear//
+clc
+clear
+//eY(2)ec("8.6data.sci");
+W = 0:1:28.58;
+W0=0;
+function w=f(W,Y)
+ w =zeros(3,1);
+
+
+fao=.188
+visc=.090
+Ta=1264.67
+deltah=-42471-1.563*(Y(3)-1260)+.00136*(Y(3)**2-1260**2)-(2.459*10**(-7))*(Y(3)**3-1260**3);
+summ= 57.23+.014 * Y(3)-1.94 *10**(-6.)*Y(3)**2
+dcp=-1.5625+2.72*10**(-3)*Y(3)-7.38*10**(-7)*Y(3)**2
+k=360D*exp(-176008/Y(3)-(110.1*log(Y(3)))+912.8)
+thetaso=0;
+Po=2
+Pao=.22
+thetao=.91
+eps=-.055
+R=1.987;
+Kp=exp(42311/R/Y(3)-11.24);
+if(Y(2)< =.05)
+
+ ra=(-k*(.848-.012/(Kp**2)));
+else
+ ra=(-k*(1-Y(2))/(thetaso+Y(2)))**.5*(Y(1)/Po*Pao*((thetao-.5*Y(2))/((1+eps*Y(2)))-((thetaso+Y(2))/(1-Y(2)))**2/(Kp**2)));
+end
+
+w(1)=(-1.12*10**(-8)*(1-.055*Y(2))*Y(3))*(5500*visc+2288)/Y(1) ;
+w(2)=-(ra)/fao ;
+w(3)=(5.11*(Ta-Y(3))+(-ra)*(-deltah) )/(fao*(summ+Y(2)*dcp))
+endfunction
+
+X=ode([2;0;1400],W0,W,f);
+
+plot2d(W,X(1,:));
+plot2d(W,X(3,:));