Committee Chair

Taylor, Lafayette K.

Committee Member

Briley, W. Roger; Nichols, Stephen; Sreenivas, Kidambi; Anderson, William K.; Matthews, John

Department

Dept. of Computational Engineering

College

College of Engineering and Computer Science

Publisher

University of Tennessee at Chattanooga

Place of Publication

Chattanooga (Tenn.)

Abstract

Fluid flow simulations play an important role in the wind industry. With the development of large wind farms, flow simulations through an entire wind farm are becoming a necessity. These are required for designing the layout of new wind farms in the development stage and for forecasting power production from the existing ones for operational purposes. Conventional Navier-Stokes simulations (commonly referred to as CFD simulations) are computationally very expensive since they require a supercomputer with runtimes of several weeks. A Parabolized Navier-Stokes (PNS) method is developed and implemented in this study. The developed PNS method requires less stringent approximations as compared to the existing parabolic methods and incorporates more physics. A wind turbine model is developed and coupled with the PNS method for simulating wind turbines and entire wind farms. The wind turbine model is adapted for spatial marching and is based on the Actuator Line rotor model and Blade Element Momentum theory. The developed PNS method is validated and verified using several test cases and a wind farm simulation on a desktop computer has a runtime of only several hours.

Acknowledgments

The research presented here was supported by the National Science Foundation (NSF) through a grant (CBET # 1236124) with Dr. Ram Gupta and Dr. Gregory Rorrer as technical monitors. Support was also provided by THEC. This support is gratefully acknowledged. Images were created and data extractions carried out using Fieldview, licenses for which were provided by Intelligent Light through their University Partners Program.

Degree

Ph. D.; A dissertation submitted to the faculty of the University of Tennessee at Chattanooga in partial fulfillment of the requirements of the degree of Doctor of Philosophy.

Date

12-2015

Subject

Wind power plants; Wind turbines

Keyword

Wind turbine; wind farm; parabolic; parabolized; wakes; spatial marching

Discipline

Computational Engineering

Document Type

Doctoral dissertations

Extent

xiii, 69 leaves

Language

English

Rights

Under copyright.

License

http://creativecommons.org/licenses/by-nc-nd/3.0/

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