Project Overview
This project explores the application of biomimicry to enhance wind turbine efficiency. Inspired by the tubercles (nodules) on humpback whale flippers, I redesigned a turbine blade's leading edge to improve flow attachment and delay stall. Using SolidWorks for 3D modeling and Ansys CFD for performance validation, I compared the bio-inspired design against a conventional NACA profile.
Key Technical Insights
Critical Pitch Angle: The bio-inspired blade demonstrates superior efficiency once the pitch angle exceeds 36 degrees.
Torque Optimization: The biomimetic design achieved a torque of 115,988 Nm, a measurable improvement over the 114,335 Nm generated by the standard blade.
Fluid Dynamics & Lift:
Flow Analysis: Streamline simulations show that the tubercles create localized vortices that maintain airflow attachment across the blade surface, even at higher angles of attack.
Pressure Distribution: The bio-inspired profile exhibits a lower range of negative pressure, directly contributing to increased lift force generation.
Methodology
3D Modeling: Created high-fidelity parametric assemblies in SolidWorks, integrating serrated leading-edge tubercles.
CFD Simulation: Conducted steady-state fluid flow analysis in Ansys to evaluate velocity streamlines and pressure contours.
Comparative Data Analysis: Evaluated lift-to-drag ratios and torque outputs across various pitch angles to identify the optimal performance threshold.
Conclusion
Integrating nature-inspired tubercles into wind turbine blades provides a passive flow control solution that significantly enhances lift and torque performance in turbulent or high-pitch conditions. This research highlights the potential for biomimicry to drive sustainable energy innovation.