Mechanical Engineering Faculty Research

Title

Vortical Gust Boundary Condition for Realistic Rotor Wake/Stator Interaction Noise Prediction Using Computational Aeroacoustics

Document Type

Article

Publication Date

Summer 8-2011

Abstract

In this work, the NASA Glenn Research Center Broadband Aeroacoustic Stator Simulation (BASS) code is extended for use in the prediction of noise produced by realistic three-dimensional rotor wakes impinging on a downstream stator row. In order to accurately simulate such a flow using a nonlinear time-accurate solver, the inflow and outflow boundary conditions must simultaneously maintain the desired mean flow, allow outgoing vortical, entropic, and acoustic waves to cleanly exit the domain, and accurately impose the desired incoming flow disturbances. This work validates a new method for the acoustics-free imposition of three-dimensional vortical disturbances using benchmark test cases. Vortical gust boundary condition for realistic rotor wake/stator interaction noise prediction using computational aeroacoustics - ResearchGate. Available from: http://www.researchgate.net/publication/229362013_Vortical_gust_boundary_condition_for_realistic_rotor_wakestator_interaction_noise_prediction_using_computational_aeroacoustics [accessed Apr 20, 2015].

Publication Title

Journal of Sound and Vibration

Volume

330

Issue

16

First Page

3801

Last Page

3817