Oscillating Airfoil in Parallel Streams Separated by an Interface

Author: Lo, Shih-Chun

Year: 1951

Degree: Dissertation (Ph.D.)

Advisor: Tsien, Hsue Shen

Committee Member: Unknown, Unknown

Option: Aeronautics; Mathematics

DOI: 10.7907/HR3R-5994

Abstract

A new approach to tail buffeting is made by studying the problem of a thin airfoil performing a periodic oscillation of small amplitude in the presence of an interface across which the flow undergoes a constant change in density and velocity. A general solution to the problem is found. Lift and moment for some special cases are obtained in simple forms and are plotted in Figs. 3 and 4 for the two basic modes of oscillation: bending and torsion. A typical application to flutter analysis is made and it is found that tail flutter at low speeds is possible for the tail lying in the wake of the wing.

Files

• Lo_sc_1951-OCR.pdf (application/pdf)