Effects of upstream disturbances on a pitching NACA0012 airfoil

Brandon E. Merrill, Yulia Peet

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Dynamically moving airfoils are encountered in several areas of flight and energy production, including helicopter rotors, wind turbine blades, and maneuvering aircraft. A clearer understanding of how freestream disturbances affect the aerodynamic forces on pitching airfoils leads to improvements in aircraft and wind turbine design. In the present study, our recently validated moving overlapping mesh methodology is used to perform a direct numerical simulation of a NACA0012 airfoil pitching with oscillatory motion in the presence of a turbulent wake created by an upstream cylinder. The global computational domain is decomposed into a stationary background mesh, which contains the cylinder, and a mesh constructed around the airfoil that is constrained to pitch with predetermined reduced frequency, k=0.16. Present simulations are performed with chord based Reynolds number Rec = 44; 000, with aerodynamic forces and vortex shedding properties being compared between the pitching airfoil simulations with and without upstream disturbances.

Original languageEnglish (US)
Title of host publication54th AIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624103933
StatePublished - 2016
Event54th AIAA Aerospace Sciences Meeting, 2016 - San Diego, United States
Duration: Jan 4 2016Jan 8 2016

Other

Other54th AIAA Aerospace Sciences Meeting, 2016
CountryUnited States
CitySan Diego
Period1/4/161/8/16

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ASJC Scopus subject areas

  • Aerospace Engineering

Cite this

Merrill, B. E., & Peet, Y. (2016). Effects of upstream disturbances on a pitching NACA0012 airfoil. In 54th AIAA Aerospace Sciences Meeting American Institute of Aeronautics and Astronautics Inc, AIAA.