Unsteady Inlet Distortion Characteristics with the B-1B
ROCKWELL INTERNATIONAL LOS ANGELES CA NORTH AMERICAN AIRCRAFT OPERATIONS
Pagination or Media Count:
An extensive wind tunnel and flight test program has been conducted to verify inlet performance and distortion characteristics on the B-1B aircraft. During the course of these investigations, several unsteady, total-pressure disturbances at various discrete frequencies were encountered 1 Inlet duct resonance at low power settings 2Environmental control system precooler duct resonance and 3 Nose gear wake ingestion. This resulted in the need to quantify these effects and assess the impact on engine stability characteristics. As a result, engine control features were modified, and aircraft configuration changes were implemented. Results and findings of these investigations are summarized.
- Fluid Mechanics
- Jet and Gas Turbine Engines