Computational Modeling of Propeller Noise: NASA SR-7A propeller

Computational Modeling of Propeller Noise: NASA SR-7A propeller

The aerospace industry has been concerned with propeller noise levels for years. This interest is two-fold: government regulation and comfort in cabin. This report attempts to create a simulation mechanism needed to evaluate the far-field noise generation levels. However, in order to do that, the ta...

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Bibliographic Details
Main Author: Moussa, Karim
Language:en
Published: 2014
Subjects:
NASA
SR-7A
Aeroacoustics
Sound Pressure Level
Aerodynamics
Tandem cylinder
Detached Eddy Simulation
Turbulence modeling
Fluid mechanics
k-omega SST
Unsteady Pressure coefficient
Sound directivity
Online Access:http://hdl.handle.net/10012/8446
Description
Summary:The aerospace industry has been concerned with propeller noise levels for years. This interest is two-fold: government regulation and comfort in cabin. This report attempts to create a simulation mechanism needed to evaluate the far-field noise generation levels. However, in order to do that, the tandem cylinder case was evaluated first as a validation step before the SR-7A propeller case was performed. Both cases use STAR-CCM+, a commercial software, to perform the simulations.

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