HD driver: add Morrison mesh and standalone driver cases #586
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This PR adds the Morrison mesh mapping to the HydroDyn driver code. This allows the driver to fully reproduce the results from a fully coupled OpenFAST simulation when the corresponding time-series data for the platform position/orientation, velocity, and acceleration is provided. Four floating platform OpenFAST simulations have been updated to provide this information, and 4 driver cases are added using the OpenFAST HydroDyn motion data to replicate the force time-series from the standalone driver.
This PR is ready to merge after the following regression test results:
There are 4 regression tests that will fail due to the addition of added HD outputs:
New Feature
The mapping of input motion time-series to the HydroDyn driver was not mapped to the Morisson mesh originally.
Related PR
This functionality will be superceeded by PR #537 (HD mesh names change). The driver code in that PR contains this new functionality with the revised mesh names, but the timeline on merging was such that this PR is necessary for an ARPA-E milestone. When PR #537 is merged, that HydroDyn driver code will replace this driver code.
Impacted areas of the software
Only the HD driver code is changed to add the mesh mapping.
Additional supporting information
Figure: comparison of the resulting
HydroFxi
force for the5MW_OC4Semi_WSt_WavesWN
OpenFAST and driver test case.Table: Maximum difference between resulting HydroDyn forces for the HD standalone and fully coupled OpenFAST simulation. Given as a percentage of the full range of the channel. The ITI Barge uses the State-Space radiation model, which has numerical roundoff in the .ss files.