From: David Fuentes <fuentesdt@gm...>  20110115 22:06:50

for solving a time dependent pde with a spatially varying parameter, what would be the best data structure to use in libMesh to hold my spatially varying parameter? ie heat equation with thermal conductivity as a function of position, k(x). I was thinking to create a separate ExplicitSystem w/ piecewise constant shape functions across elements. However, within a FEMSystem element_time_derivative call, what is the most efficient way to access the element wise parameters? thanks, df 