Weekly Seminar: Spring 2014
Speaker: Dr. Yulia Peet (Arizona State University)
Title: "Large Eddy Simulations of Wind Turbine Flow and Wakes with Spectral Element Methods"
Date: Friday, April 4, 2014
Time: 11:00 a.m.
Location: Gilman Hall 50 (Marjorie M. Fisher Hall)
In this talk, we discuss our recent developments within the high-order spectral-element (SEM) fluid dynamics code that make it possible to adapt it to high-fidelity simulations of wind turbine flow and wakes. We start by introducing the basic concepts of a spectral-element method and what makes it especially attractive for turbulent flow simulations. We then proceed to describe our new developments within the SEM code that contribute towards efficient simulations of flows around wind turbines. The first development includes a novel overlapping grid approach that retains an exponential convergence in space and high-order accuracy in time on overlapping and moving domains. This approach can be used effectively for simulations of the flow over a rotating wind turbine under the influence of incoming atmospheric turbulence. The second development is the implementation of an actuator line aerodynamics model within the spectral element code that is an alternative approach to wind turbine wakes simulations, especially attractive in a situation of multiple wind turbines. We present our preliminary results of the Large Eddy Simulations of wind turbine wakes with the actuator line approach. We conclude by discussing our future research interests and plans.
Yulia Peet is an Assistant Professor of Mechanical and Aerospace Engineering at the School for Engineering of Matter, Transport and Energy at Arizona State University since Fall 2012. Her Ph.D. degree is in Aeronautics and Astronautics from Stanford (2006), M.S. and B.S. degrees are from Moscow Institute of Physics and Technology (1999 and 1997). Her previous appointments include a Postdoctoral position at the University of Pierre and Marie Curie in Paris in 2006-2008, and a dual appointment as an NSF Fellow at Northwestern and Assistant Computational Scientist at Argonne National Laboratory in 2009-2012. Her research interests include computational modeling and simulation in fluid mechanics and turbulent flows with applications in wind energy, aerospace, and bio-fluid mechanics.
Speaker: Prof. Elie Bou-Zeid (Princeton University)
Title: "New insights into the dynamics of the stably-stratified Ekman boundary layer from direct and large-eddy simulations"
Date: Friday, September 5, 2014
Time: 11:00 a.m.
Location: Gilman Hall 132
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