Evaluation of the constant pressure panel method for supersonic unsteady airloads prediction

Autor:	Kari Appa, Michael J. C. Smith
Rok vydání:	1989
Předmět:	Lift (force) Lift coefficient Fuselage Generalized forces Computer science business.industry Aerospace Engineering Flutter Supersonic speed Structural engineering Aerodynamics business Stability derivatives
Zdroj:	Journal of Aircraft. 26:854-862
ISSN:	1533-3868 0021-8669
DOI:	10.2514/3.45851
Popis:	This paper evaluates the capability of the constant pressure panel method (CPM) code to predict unsteady aerodynamic pressures, lift and moment distributions, and generalized forces for general wing-body configurations in supersonic flow. Stability derivatives are computed and correlated for the X-29 and an oblique wing research aircraft, and flutter analyses are carried out for two wind-tunnel test examples. Most results are shown to correlate well with test or published data. Although the emphasis of this paper is on evaluation, an improvement in the handling of intersecting lifting surfaces is briefly discussed. An attractive feature of the CPM code is that it shares the basic data requirements and computational arrangements of the doublet lattice method. A unified code to predict unsteady subsonic or supersonic airloads has thus been developed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::251ae1c19b465ec4f7d5fa9c152cd1f3 https://doi.org/10.2514/3.45851 Zobrazit plný text záznamu