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-   -   heat conduction problem - well posedness (http://www.cfd-online.com/Forums/main/64155-heat-conduction-problem-well-posedness.html)

manatee April 30, 2009 13:08

heat conduction problem - well posedness
 
I was wondering if the following problem is well posed:

T_t = (a^2) T_xx, T(x,t) = temperature, 0 < x < 1, t > 0.

T(x,0) = f(x), T(0,t) = g(t), T_x(0,t) = h(t).

Instead of the last condition on T_x, if I had T(1,t) = e(t), then it is well posed and has a unique solution. Because the temperature and heat flux is specified on one end, I am wondering how one gets a Sturm-Liouville problem in x, in this case.

Thanks for all the help.:)

manatee May 1, 2009 16:03

Quote:

Originally Posted by manatee (Post 214795)
I was wondering if the following problem is well posed:

T_t = (a^2) T_xx, T(x,t) = temperature, 0 < x < 1, t > 0.

T(x,0) = f(x), T(0,t) = g(t), T_x(0,t) = h(t).

Instead of the last condition on T_x, if I had T(1,t) = e(t), then it is well posed and has a unique solution. Because the temperature and heat flux is specified on one end, I am wondering how one gets a Sturm-Liouville problem in x, in this case.

Thanks for all the help.:)

Ok. I did find out the answer. It is shown by Lavrentiev and others that this is NOT well posed.


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