Time-linearised transonic computations including entropy, vorticity and shock wave motion effects

Ly, E and Nakamichi, J 2003, 'Time-linearised transonic computations including entropy, vorticity and shock wave motion effects', The Aeronautical Journal, vol. 107, no. 1077, pp. 687-695.


Document type: Journal Article
Collection: Journal Articles

Title Time-linearised transonic computations including entropy, vorticity and shock wave motion effects
Author(s) Ly, E
Nakamichi, J
Year 2003
Journal name The Aeronautical Journal
Volume number 107
Issue number 1077
Start page 687
End page 695
Total pages 9
Publisher Royal Aeronautical Society
Abstract The effect of small perturbations on steady nonlinear transonic small disturbance flowfields, in the context of two-dimensional flows governed by the general-frequency transonic small disturbance equation with nonreflecting far-field boundary conditions, is investigated. We present a time-linearised time-domain solution method that includes effects due to the shock-generated entropy and vorticity and shock wave motions. The solution procedure correctly accounts for the small-amplitude shock wave motion due to small unsteady changes in the aerofoil boundary conditions, and correctly models a flowfield with embedded strong shock waves. Steady and first harmonic pressure distributions for the NACA 0003 aerofoil with a harmonically oscillating flap, and NACA 0012 aerofoil undergoing a sinusoidal pitching oscillation, are predicted and compared with the Euler results.
Subject Theoretical and Applied Mechanics
ISSN 0001-9240
Versions
Version Filter Type
Citation counts: Scopus Citation Count Cited 3 times in Scopus Article | Citations
Access Statistics: 160 Abstract Views  -  Detailed Statistics
Created: Fri, 07 Jan 2011, 09:11:00 EST by Catalyst Administrator
© 2014 RMIT Research Repository • Powered by Fez SoftwareContact us