[pinball1997]

I am currenty assigned to run a fortran code of Sod's shock tube problem using Harten-lax-van leer(HLL) flux and Rusanov flux. I make use of the Roe flux fortran code in running the simulation but when I apply HLL and Rusanov flux, the data file i generated shows no values of the variables that are supposed to be there. Is it the problem with the code or software problem?

Here is the image of some part of the dat file when I ran the Roe code which works perfectly.


Here is the images i got when i ran HLL and Rusanov flux fortran code.


Here are my sources codes for Roe, HLL and Rusanov.
https://drive.google.com/file/d/11yt...ew?usp=sharing
https://drive.google.com/file/d/1CXQ...ew?usp=sharing
https://drive.google.com/file/d/1dRw...ew?usp=sharing

P/s: I am not an expert in fortran coding