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novembering

¾èÖú¹ó±ö (СÓÐÃûÆø)

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novembering

¾èÖú¹ó±ö (СÓÐÃûÆø)

function pde
x=0:1:30;
t=0:50:300;
m=0;
sol=pdepe(m,@mpde,@mpic,@mpbc,x,t);
u=sol(:,:,1);
surf(x,t,u)
figure;
plot(x,u(end,)
function [c,f,s]=mpde(x,t,u,du)
c=1;
f=8.2e-8+(1.56e-6/(1+(5-5*u)^15));
s=0;
function [pa,qa,pb,qb]=mpbc(xa,ua,xb,ub,t)
pa=0;
qa=7.354*(0.6-ua)/8.2e-8+(1.56e-6/(1+(5-5*u)^15));
pb=30;
qb=7.354*(0.6-ub)/8.2e-8+(1.56e-6/(1+(5-5*u)^15));
function u0=mpic(x)
u0=1;
2Â¥2016-02-06 11:40:48
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