05 - Propulsion and Energy
NUMERICAL STUDY OF UNSTEADY DISTORTION IN AN S-DUCT INTAKE SUBJECTED TO BLAST SHOCK WAVES
L.L. Shi¹, Y. Fan¹, B.G. Mi¹; ¹Northwestern Polytechnical University, China
Unsteady distortion in an S-duct intake subjected to blast shock waves is numerically investigated. Shock wave ingestion induces strong transient distortion, large-scale flow separation, and significant intake performance degradation at the aerodynamic interface plane. A body force model is adopted to represent the fan response, enabling efficient capture of unsteady distortion evolution with reduced computational cost. The proposed approach provides a reliable and efficient tool for intake performance assessment under explosive shock loading.