FAST Modular Wind Turbine CAE Tool: Nonmatching Spatial and Temporal Meshes: Preprint

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In this paper we propose and examine numerical algorithms for coupling time-dependent multi-physics modules relevant to computer-aided engineering (CAE) of wind turbines. In particular, we examine algorithms for coupling modules where spatial grids are non- matching at interfaces and module solutions are time advanced with different time increments and different time integrators. Sharing of data between modules is accomplished with a predictor-corrector approach, which allows for either implicit or explicit time integration within each module. Algorithms are presented in a general framework, but are applied to simple problems that are representative of the systems found in a whole-turbine analysis. Numerical ... continued below

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26 p.

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Sprague, M. A.; Jonkman, J. M. & Jonkman, B. J. January 1, 2014.

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In this paper we propose and examine numerical algorithms for coupling time-dependent multi-physics modules relevant to computer-aided engineering (CAE) of wind turbines. In particular, we examine algorithms for coupling modules where spatial grids are non- matching at interfaces and module solutions are time advanced with different time increments and different time integrators. Sharing of data between modules is accomplished with a predictor-corrector approach, which allows for either implicit or explicit time integration within each module. Algorithms are presented in a general framework, but are applied to simple problems that are representative of the systems found in a whole-turbine analysis. Numerical experiments are used to explore the stability, accuracy, and efficiency of the proposed algorithms. This work is motivated by an in-progress major revision of FAST, the National Renewable Energy Laboratory's (NREL's) premier aero-elastic CAE simulation tool. The algorithms described here will greatly increase the flexibility and efficiency of FAST.

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26 p.

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  • To be presented at SciTech2014, 13-17 January 2014, National Harbor, Maryland

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  • Report No.: NREL/CP-2C00-60742
  • Grant Number: AC36-08GO28308
  • Office of Scientific & Technical Information Report Number: 1122300
  • Archival Resource Key: ark:/67531/metadc866716

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  • January 1, 2014

Added to The UNT Digital Library

  • Sept. 16, 2016, 12:32 a.m.

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  • April 4, 2017, 3:33 p.m.

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Sprague, M. A.; Jonkman, J. M. & Jonkman, B. J. FAST Modular Wind Turbine CAE Tool: Nonmatching Spatial and Temporal Meshes: Preprint, article, January 1, 2014; Golden, Colorado. (digital.library.unt.edu/ark:/67531/metadc866716/: accessed December 11, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.