modeling PDEs in simulink

how to model a system that is described by a partial differential equation in simulink. to model a ordinary differential equation is done with the help of the integrator block but what about PDEs.For example the two included in the image? in case the image is not visible here is the example equations

∂Vs(L,t)/∂L=-R*Is(L,t)+l*∂/∂t Is(L,t);

∂Is(L,t)/∂L=-g*Vs (L,t)+c ∂/∂t Vs(L,t);

please write in detail how do you modify them in order to implement in simulink.Thank you.

[jose luis huayanay villar]

ud. logro simular las PDE?.si lo iso podria enviarme al correo? [e-mail]