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Wind Blade Analysis Problem Specification

Created using ANSYS 2020 R1

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Learning Goals

In this tutorial, you will learn how to:

• the basics of developing Develop a CFD solution for  wind turbine rotor using ANSYS Fluent
• how to apply boundary conditions and understand the governing equations behind your solution
• how to develop Develop a a 3D mesh, solve for the flow field, and plot results

Problem Specification

The MAE 4021 and 5020 project involves developing a CFD simulation of the flow field for a This tutorial shows you how to simulate the flow around a given “standard” wind turbine rotor using ANSYS Ansys Fluent.  The CFD simulation will yield the pressure/velocity distribution around the blade and the power coefficient. A sample blade geometry is given to be used in the simulations as an example was developed by one of the groups performing the senior design component of this course in a prior year. A CAD file containing the blade geometry is provided to you on Canvas (see below for download instructions).

In the simulations, use a wind speed of 5 m/s and a tip speed ratio of 6. For air density and viscosity, use values from the “standard atmosphere”. Note that in a given Reynolds number range, the efficiency of a turbine with blades of radius R depends primarily on the tip speed ratio, λ = ΩR/U, where U is the wind speed, and Ω is the angular velocity of the rotor.

Your project report should include the following. For each item below, also include a short discussion i.e. don’t just present a bunch of figures or equations without any discussion.

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rotor geometry is shown in the figure below. The hub is neglected for simplicity since it doesn't contribute to the power generated by the rotor. Only one blade is considered in the simulation set-up by using periodic boundary conditions. The simulation yields the velocity and pressure fields around the blade and the power generated. 

Image Added

The following document lists the steps of this tutorial with general directions:

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Go to Step 1: Pre-Analysis & Start-Up

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