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- Title
A UDF-Based Approach for the Dynamic Stall Evaluation of Airfoils for Micro-Air Vehicles.
- Authors
Sterpu, Diana-Andreea; Măriuța, Daniel; Grigorie, Lucian-Teodor
- Abstract
A numerical method for generating dynamic stall using ANSYS Fluent and a user-defined function (UDF), with the complete script shared for reference, is introduced and tested. The study draws inspiration from bird flight, exploring dynamic stall as a method for achieving enhanced aerodynamic performance. The numerical method was tested on NACA 0012 airfoils with corresponding chord lengths of c 1 = 40 m m , c 2 = 150 m m , and c 3 = 300 m m at Reynolds numbers ranging from R e 1 = 2.8 × 10 4 up to R e 5 = 1.04 × 10 6 . Airfoil oscillations were settled for all cases at ω = 0.55 H z . Detached eddy simulation (DES) is employed as the turbulence model for the simulations presented, ensuring the accurate representation of the flow characteristics and dynamic stall phenomena. The study provides a detailed methodology, encouraging further exploration by researchers, especially young academics and students.
- Subjects
AEROFOILS; BIRD flight; REYNOLDS number; RESEARCH personnel; TURBULENCE; FLIGHT
- Publication
Biomimetics (2313-7673), 2024, Vol 9, Issue 6, p339
- ISSN
2313-7673
- Publication type
Article
- DOI
10.3390/biomimetics9060339