Direct Calculation of Cavity Noise and Validation of Acoustic Analogies
Abstract
Flow-induced cavity noise is a harmful noise source in many applications. A complex nonlinear phenomenon is responsible for the intense self-sustained oscillations observed in experiments. However, the physics is difficult to model analytically. The tonal Strouhal numbers are well approximated by Rossiter's formula for a wide range of configurations but this simple semi-empirical analysis is not able to indicate the main oscillation mode neither its amplitude. Moreover, it is now generally recognized that noise generation mechanism can be dependent on the incoming boundary layer, the geometric properties of the cavity, the Mach number of the mean flow, and many other parameters.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 2003
- Accession Number
- ADP014112
Entities
People
- Christophe Bailly
- Daniel Juve
- Xavier Gloerfelt