Revision as of 11:00, 23 April 2018 view source Chris Huxley (talk \| contribs) Bureaucrats, Administrators 7,785 edits →Cell Discretisation, Solution Scheme and Parallelisation ← Older edit		Revision as of 11:01, 23 April 2018 view source Chris Huxley (talk \| contribs) Bureaucrats, Administrators 7,785 edits →Cell Discretisation Newer edit →
Line 30: The explicit finite volume solution scheme utilised in HPC is mass conserving by construction (0% mass error). This differs to TUFLOW Classic, which can continue to simulate a model with some volume error due to it being an implicit finite difference scheme. The stability of the explicit finite volume scheme used in TUFLOW HPC is linked to the timestep, flow velocities, water depth, and eddy viscosity. The maximum timestep that can be used while maintaining model stability changes as the model evolves. While it is possible to choose a fixed timestep ahead of time (similarly to TUFLOW Classic), shorter run times and guaranteed model stability from start to finish may be achieved through the use of adaptive timestepping where the solver continually modifies the timestep based on various stability criteria. This is explained in more detail in our <u>[[HPC_Adaptive_Timestepping \| Adaptive Timestepping]]</u> page.<br> ~~===Cell Discretisation===~~ ~~HPC cell discretisation is the same as in TUFLOW Classic, where the v velocities are defined on the horizontal mid-points between cell centres and the u-velocities on the vertical mid-points. <br>~~ ===Compatible Graphic Cards (GPU) ===

HPC Introduction: Difference between revisions