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MEMS Seminar: Large Eddy Simulations of Turbulent Flows Around a Ducted Wind Turbine

Aug 25

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Wednesday, August 25, 2021 - 12:00pm to 1:00pm

Chunlei Liang

Presenter

Professor Chunlei Liang

MEMS Fall 2021 Seminar Presents: Dr. Chunlei Liang of Clarkson University Presented August 25th, 2021 Location: Fitzpatrick Schiciano-B 1466 and in ZOOM, Zoom link: https://duke.zoom.us/j/93301444047 In this talk, a novel high-order sliding-mesh algorithm for solving compressible Navier-Stokes equations on unstructured grids will be presented. This high-order method is validated against experimental data for turbulent flows around a marine propeller operating at the design condition. Subsequently, the method is applied to analyze the performance of a ducted wind turbine at a Reynolds number of 1.25 Million. The computational results clearly show that the ducted turbine has higher thrust and higher power outputs than the open-rotor turbine. Vorticity and velocity fields of two configurations are also visualized and analyzed to show the differences.