A Novel Method to Predict Circulation Control Noise
Abstract
Underwater vehicles suffer from reduced maneuverability with conventional lifting appendages. Circulation control (CC) offers a method to increase maneuverability. However, with CC comes additional noise sources. A method involving estimation of the velocity, surface pressure, and far-field acoustic fields is developed. In the absence of added noise, the prediction performs well on simulated , low Reynolds number flow over a cylinder. The method also performs reasonably well on a high Reynolds number circulation control airfoil with no blowing but under-performs with the jet active. Delay-and-sum and DAMAS beam forming are used to acquire accurate far-field acoustic levels. A scaling analysis is also performed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 17, 2016
- Accession Number
- AD1006124
Entities
People
- Adam Nickels
- Lawrence S Ukeiley
- Louis N Cattafesta
- Robert Reger
Organizations
- Florida State University