Aortic dissection (AD) is a life-threatening cardiovascular condition characterized by a tear in the aortic wall, which creates a new duct for blood flow, called false lumen (FL). This channel is separated from the true lumen (TL) by the first layer of aortic wall, called intimal flap (IF). Computational fluid dynamics (CFD) has emerged as a useful tool for hemodynamic analysis, as it's very challenging to evaluate key flow parameters directly in-vivo. This study explores and validates the embedded formulation, an unfitted meshing process, for the CFD simulation of AD hemodynamics, by comparing results with fluid-structure interaction (FSI) simulations available in the literature.