BLI
Boundary Layer Ingestion
AFC
参考文献：NASA Blended Wing Body Systems Studies: Boundary Layer Ingestion Inlets With Active Flow Control
https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20040031343.pdf
NASA Boundary Layer Ingestion Propulsion
https://www1.grc.nasa.gov/aeronautics/bli/