Abstract

The URANS (Unsteady Reynolds Averaged Navier-Stokes equations) method is used to compute the transonic buffet, the shock oscillations, and the evolution of flow structures of 18% thick biconvex circular-arc airfoil. The suppression effects of active control with different parameters and passive control with different configurations on transonic airfoil buffet are investigated by numerical method. The computational results in the present paper reveal that the self-sustained shock oscillation on 18% thick biconvex circular-arc airfoil at transonic speeds has only forward motion without noticeable backward motion, a cavity with slots, as a passive control measure, can alleviate transonic buffet, while the trailing-edge jet, as an active control measure, can effectively suppress transonic buffet, even eliminate the shock oscillation and make the flow steady.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.