10 research outputs found
A validation of LTRAN2 with high frequency extensions by comparisons with experimental measurements of unsteady transonic flows
A high frequency extension of the unsteady, transonic code LTRAN2 was created and is evaluated by comparisons with experimental results. The experimental test case is a NACA 64A010 airfoil in pitching motion at a Mach number of 0.8 over a range of reduced frequencies. Comparisons indicate that the modified code is an improvement of the original LTRAN2 and provides closer agreement with experimental lift and moment coefficients. A discussion of the code modifications, which involve the addition of high frequency terms of the boundary conditions of the numerical algorithm, is included
East Germany in from the Cold: The Economic Aftermath of Currency Union
macroeconomics, East Germany, currency union