Abstract
A computational method of Space-Time Mapping Analysis (STMA), developed in Ref. [1], is applied to nonlinear, inviscid computation of unsteady airfoil response to an upstream flow with a finite amplitude of unsteady perturbation. The unique feature of the method is that it solves the unsteady problem as a steady-state one, by treating the time coordinate identically to space directions. Time-accurate predictions are achieved by using a high-order discretization scheme. Computed results for both unsteady aerodynamic and aeroacoustic airfoil responses are compared against numerical solutions from Refs [2] and [3-4].
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