FSI Two-Way Analysis: Understanding Fluid-Structure Dynamics in Wind Turbine Blades
$200.00 $100.00 Student Discount
- This project focuses on the two-way Fluid-Structure Interaction (FSI) simulation of wind turbine blades to analyze their performance under specified conditions.
- Utilizing a dynamic mesh and advanced computational techniques, the study aims to evaluate key parameters such as torque, maximum stress, and total deformation.
- By modifying the geometry in ANSYS Spaceclaim and conducting the simulation with 990,399 cells, the project demonstrates how the blade’s structural integrity is affected by fluid flow and mechanical forces.
- The results, including stress distribution and displacement, provide insights into optimizing wind turbine design for improved efficiency and durability.
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Description
FSI Two-Way Analysis
Project Description
This project aims to perform a two-way Fluid-Structure Interaction (FSI) with a specific setup. The setup involves a dynamic mesh with second-order implicit time stepping and higher-order term relaxation in fluid flow transient formulation. The main objective of the project is to understand the behavior of the system under the following conditions: – Inlet Velocity = -12m/s – Angular velocity = – 2.1719 rad/s
For these conditions, the project will focus on determining the following parameters:
– Torque
– Maximum Stress
– Total Deformation
The received geometry is modified in the ANSYS Spaceclaim software. Then, it is meshed in ANSYS Meshing. This process leads to the generation of 990399 cells.
The simulation methodology requires the use of Frame motion (MRF) for the rotational movement of the turbine. The two-way FSI module needs the involvement of a dynamic mesh. Thus, smoothing and remeshing methods are taken into account. It should be noted that, due to the steady nature of the performance of horizontal-axis wind turbines, the simulation is performed in steady-state conditions, and the reported values are measured in the working condition of the turbine.
Results
The connection surface of the blade to the turbine’s rotating axis is fixed and has no displacement. Based on the main objectives, torque, total displacement and maximum stress are reported, as shown in the table below:
|
Torque |
115364.81 N.m |
| Maximum Stress (Von Mises) |
15.6 Mpa |
| Total Displacement |
0.10607 m |
It should be mentioned that the total displacement reported in the table is an average displacement along the blade’s surface. For better understanding, Figure 1 is illustrated so that the displacement in each direction for all blade points can be seen. The most displacement occurs at the blade tip, where it experiences 0.54m displacement. Another noticeable point is the maximum stress regarding the Von Mises relationship. It is reported to be nearly 15.6 MPa. Plus, the stress concentration is illustrated in Figure 2.
Figure 1- a) X displacement b) Y displacement c) Z displacement d) total displacement
Figure 2- Von misses stress, a) perspective view, b) front view
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