Merged requested to merge CFD-Xing/nektar:fix/RK5-time-integration-scheme into master
The RK5 time integration scheme is not properly implemented. This merge request solve this issue.
The solution norm for RK2, RK3, and RK4 are
6.19886, respectively. The original solution norm for RK5 was
6.61221. With the correct scheme, the solution norm is
[ ] Functions and classes, or changes to them, are documented. [ ] User guide/documentation is updated.
Changelog is updated.
Suitable tests added for new functionality.
Contributed code is correctly formatted. (See the contributing guidelines). [ ] License added to any new files.
No extraneous files have been added (e.g. compiler output or test data files).