Skip to main content
main-content
Top

Hint

Swipe to navigate through the articles of this issue

05-03-2020 | Original Paper | Issue 6/2020

Acta Mechanica 6/2020

Nonlinear supersonic indicial response of diamond airfoils

Journal:
Acta Mechanica > Issue 6/2020
Authors:
Sheng Li, Chen-Yuan Bai, Zi-Niu Wu
Important notes

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Abstract

Supersonic flows around diamond airfoils, under large-amplitude step motion, are analytically studied. Nine regions with distinct flow structures are identified on each side. These regions include intricate wave structures and significantly shape the indicial response. The novelty of this work is to develop theoretical models, capable of describing each region’s wave speed, pressure, and force. We achieve this by correcting the linear solution to the problem and incorporating nonlinear effects of large angle and airfoil thickness. Our model reports good accuracy regarding the computational fluid dynamics. And three stages, which are predicted by this model, precisely capture important features of aerodynamic force evolution.

Please log in to get access to this content

Literature
About this article

Other articles of this Issue 6/2020

Acta Mechanica 6/2020 Go to the issue

Premium Partners

    Image Credits