2nd order differential equation

Hi everybody, I am trying to simulate a process with simulink but I am not able to find any example similar to my case so that I can solve it.

Does anyone knows how I can solve this with Simulink?

dT/dt = Konstant1* (1/x)*dT/dx + Konstant1*(d^2T/dx^2) + Konstant 3

I would be very thankful if someone could give me any tipps… maybe there are some blocks that can solve sth like this?

I tried to develop the whole thing by using:

dT/dx = (T_xi – T_x(i-1))/ (xi – x(i-1))

and the like for the second order differential, but it gets very long and doesn’t look much easier to me…

Thanks again! Marta