Assessment of Propulsor On Design and Off Design Impacts on BLI Effects

Presented at AIAA SciTech 2021 ConferenceAs part of an effort to develop a parametric and coupled aero-propulsive conceptual design methodology for boundary layer ingesting (BLI) aircraft, there is a need to investigate propulsor sizing and off-design impacts on the ingested boundary layer. This study uses 3D CFD analysis to quantify the BLI effects trends as a function of fan annulus area and mass flow rate required, for engine locations similar to those on the the D8, NOVA-BLI and the STARC-ABL concepts. This study extends previous work that relied on CFD analysis of an axisymmetric model for the STARC-ABL concept. The results from this study highlight the propulsor’s contribution to the aero-propulsive coupling inherent in BLI concepts