Jet Noise in Airframe Integration and Shielding
Saman Salehian, Reda R. Mankbadi
Abstract
This paper reviews and presents new results on the effect of airframe integration and shielding on jet noise. Available experimental data on integration effects are analyzed. The available options for the computation of jet noise are discussed, and a practical numerical approach for the present topic is recommended. Here, it is demonstrated how a hybrid large eddy simulation—unsteady Reynolds-averaged Navier-Stokes approach can be implemented to simulate the effect of shielding on radiated jet noise. This approach provides results consistent with the experiment and suggests a framework for studying more complex geometries involving airframe integration effects.
Topics & Concepts
AirframeJet noiseJet (fluid)Noise (video)ComputationAerospace engineeringElectromagnetic shieldingLarge eddy simulationComputer scienceReynolds numberAcousticsEngineeringPhysicsMechanicsElectrical engineeringTurbulenceAlgorithmArtificial intelligenceImage (mathematics)Aerodynamics and Acoustics in Jet FlowsFluid Dynamics and Turbulent FlowsWind and Air Flow Studies