Harten's Large Time Step Schme for hyperbolic conservation laws

Noor Fatima Siddiqui · November 11, 2013, 05:27

I am solving shock tube problem using Harten Large Time Step Scheme (1986 paper)and for K=2, CFL=1.8 my results are not satisfactory

its showing oscillation. What can be the possible reasons for it??
I've uploaded graph of my results by name EP DIFF

Mukkarum · November 11, 2013, 05:51

you should take a look on following paper:
On large time step TVD scheme for hyperbolic conservation laws and its efficiency evaluation
http://www.sciencedirect.com/science...21999112003889

use eq 9 or eq 10 of above paper to calculate numerical flux.
Your problem would be solved.

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November 11, 2013, 05:51		#2
Mukkarum New Member Hussain Join Date: Nov 2013 Posts: 3 Rep Power: 12	you should take a look on following paper: On large time step TVD scheme for hyperbolic conservation laws and its efficiency evaluation http://www.sciencedirect.com/science...21999112003889 use eq 9 or eq 10 of above paper to calculate numerical flux. Your problem would be solved.