4.2.2. OLAF User’s Guide and Theory Manual (Free Vortex Wake in AeroDyn15)
This document offers a quick reference guide for the free vortex wake module named OLAF that is included in the AeroDyn module of OpenFAST. It is intended to be used by the general user in combination with other features of AeroDyn and other OpenFAST modules. The manual will be updated as new releases are issued and as needed to provide further information on advancements or modifications to the software.
The documentation here was derived from the OLAF users manual by K. Shaler, E. Branlard, and A. Platt. (https://www.nrel.gov/docs/fy20osti/75959.pdf)
- 4.2.2.1. Introduction
- 4.2.2.2. List of Symbols
- 4.2.2.3. Working with OLAF
- 4.2.2.4. Input Files
- 4.2.2.5. Output Files
- 4.2.2.6. OLAF Theory
- 4.2.2.6.1. Introduction - Vorticity Formulation
- 4.2.2.6.2. Discretization - Projection
- 4.2.2.6.3. Lifting-Line Representation
- 4.2.2.6.4. Free Vorticity Convection
- 4.2.2.6.5. Free Vorticity Convection in Polar Coordinates
- 4.2.2.6.6. Frozen Vorticity Convection
- 4.2.2.6.7. Induced Velocity and Velocity Field
- 4.2.2.6.8. Regularization
- 4.2.2.6.9. Diffusion
- 4.2.2.7. State-Space Representation and Integration with OpenFAST
- 4.2.2.8. Future Work
- 4.2.2.9. References
- 4.2.2.10. Appendix A: OLAF Primary Input File
- 4.2.2.11. Appendix B: Prescribed Circulation Input File
- 4.2.2.12. Appendix C: OLAF List of Output Channels