Evaluation of Quasi-One-Dimensional Unstructured Method for Jet Noise Prediction

The paper presents a lower-cost higher-accuracy algorithm for numerical simulation of jet aerodynamics and acoustics on unstructured meshes. To provide a higher-accuracy prediction of unsteady jet flow, the scale-resolving delayed detached-eddy simulation approach is implemented on unstructured mesh...

Full description

Saved in:
Bibliographic Details
Published in:AIAA journal 2019-12, Vol.57 (12), p.5142-5155
Main Authors: Duben, Alexey P, Kozubskaya, Tatiana K
Format: Article
Language:English
Subjects:
Acoustic noise
Acoustics
Aerodynamics
Algorithms
Computer simulation
Detached eddy simulation
Jet aircraft noise
Jet flow
Mach number
Noise prediction (aircraft)
Subsonic aircraft
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The paper presents a lower-cost higher-accuracy algorithm for numerical simulation of jet aerodynamics and acoustics on unstructured meshes. To provide a higher-accuracy prediction of unsteady jet flow, the scale-resolving delayed detached-eddy simulation approach is implemented on unstructured meshes using the edge-based reconstruction schemes. The jet far-field noise is calculated with the help of the Ffowcs-Williams and Hawkings method. The efficiency of the resulting “unstructured” algorithm is demonstrated on two popular cases: a subsonic unheated jet of Mach number 0.9, and a sonic underexpanded hot jet.
ISSN:0001-1452
1533-385X
DOI:10.2514/1.J058162