Answers are grounded in this paper and cite their sources.
A method is presented to model the unsteady lift, pitching moment, and drag acting on a two-dimensional airfoil operating under attached-flow conditions in a compressible flow. Starting from suitable generalizations and approximations to aerodynamic indicial functions, the unsteady airloads due to an artibrary forcing are represented in a state-space (differential equation) form. This model is in a form compatible with the aeroelastic analyses of both fixed-wing and rotary-wing systems
No takes yet. Share an insight, caveat, or question.
Leishman et al. (1990) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: