1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: FEM with discontinuity

  1. Jun 16, 2012 #1
    1. The problem statement, all variables and given/known data

    Use FEM to solve this problem. The difficulty lies in the fact that the exact solution has a discontinuity in it. From x=[0,0.6) the exact solution u is x5/20 - x/20 and from x =(0.6,1] u is sin(x). The problem I'm having is I'm not sure what to do at the jump in my code. I have already set up my matrices Au = f, and it solves it fine given no discontinuity.

    uxx = f

    2. Relevant equations

    u(0) = u0
    u(1) = u1
  2. jcsd
  3. Jun 16, 2012 #2

    Ray Vickson

    User Avatar
    Science Advisor
    Homework Helper

    What is FEM?

  4. Jun 16, 2012 #3
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook