The pursuit of more precise numerical methods in Computational Fluid Dynamics (CFD) is crucial, especially given the inherently nonlinear and highly complex nature of the governing equations for physical phenomena. Therefore, the present work proposes an extension of a computational methodology based on the coupling of the Fourier Pseudospectral Method (FPSM) and the Immersed Boundary Method (IBM), applied to simulations of external flows over aerodynamic profiles. This hybrid approach, termed IMERSPEC, capitalizes on the inherent advantages of pseudospectral methods, of fering high accuracy and low computational costs, facilitated by the Fast Fourier Transform algorithm. IBM is applied to enforce non-periodic boundary conditions on the Navier-Stokes equations, as FPSM requires periodicity at the boundaries to achieve convergence. The aerodynamic behavior of the analyzed profiles is investigated by determining lift and drag coefficients as functions of the angle of attack, with results validated against existing literature. The obtained results demonstrate consistency with literature findings, particularly in flows at lower Reynolds numbers, underscoring the efficacy of the IMERSPEC methodology and the employed physical models in simulating complex flows.