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HD driver: add Morrison mesh and standalone driver cases #586

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merged 6 commits into from
Nov 11, 2020

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@andrew-platt andrew-platt commented Nov 10, 2020

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:

  • macos-gnu
  • windows-intel
  • linux-intel
  • linux-gcc

There are 4 regression tests that will fail due to the addition of added HD outputs:

	 21 - 5MW_ITIBarge_DLL_WTurb_WavesIrr (Failed)
	 22 - 5MW_TLP_DLL_WTurb_WavesIrr_WavesMulti (Failed)
	 23 - 5MW_OC3Spar_DLL_WTurb_WavesIrr (Failed)
	 24 - 5MW_OC4Semi_WSt_WavesWN (Failed)

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

5MW_OC4Semi_WSt_WavesWN--compare
Figure: comparison of the resulting HydroFxi force for the 5MW_OC4Semi_WSt_WavesWN OpenFAST and driver test case.

HD_compare_table
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.

@andrew-platt andrew-platt assigned rafmudaf and unassigned rafmudaf Nov 10, 2020
@andrew-platt andrew-platt marked this pull request as ready for review November 11, 2020 00:25
@rafmudaf rafmudaf force-pushed the f/HD_Driver_MorisonAdd branch from 23caac2 to 5daa217 Compare November 11, 2020 20:18
@andrew-platt andrew-platt merged commit e582e6d into OpenFAST:dev Nov 11, 2020
@andrew-platt andrew-platt deleted the f/HD_Driver_MorisonAdd branch November 20, 2020 18:31
@rafmudaf rafmudaf mentioned this pull request Dec 3, 2020
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@rafmudaf rafmudaf mentioned this pull request Jan 13, 2021
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2 participants