Accession Number : ADP007800

Title :   Comparison of Euler and Full Potential Methods for Unsteady Transonic Flow Calculations,

Corporate Author : DEUTSCHE FORSCHUNGS- UND VERSUCHSANSTALT FUER LUFT- UND RAUMFAHRT E V GOETTING EN (GERMANY F R)

Personal Author(s) : Vob, R. ; Wegner, W.

Report Date : MAR 1992

Pagination or Media Count : 17

Abstract : This paper presents the results of unsteady transonic flow calculation methods developed at the DLR Institute of Aeroelasticity for oscillating airfoils and wings. 2D Euler and Full Potential calculations in the nonlinear regime with pronounced shock dynamics at the conventional NACA0012 and the super-critical NLR7301 airfoil show that the unsteady pressure distributions agree well, whereas the unsteady lift and moment curves are not always in good agreement.

Descriptors :   *AIRFOILS, *OSCILLATION, *UNSTEADY FLOW, *AERODYNAMIC LIFT, *SUPERCRITICAL AIRFOILS, AEROELASTICITY, DYNAMICS, MOMENTS, SHOCK, TRANSONIC FLOW, WINGS, GERMANY, TRANSONIC CHARACTERISTICS, PRESSURE DISTRIBUTION.

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE