scholarly journals Characterization of Unsteady Flow Structures Around Tandem Cylinders for Component Interaction Studies in Airframe Noise

2005 ◽  
Author(s):  
Luther Jenkins ◽  
Mehdi Khorrami ◽  
Meelan Choudhari ◽  
Cathy McGinley
Keyword(s):  
Unsteady Flow ◽  
Flow Structures ◽  
Airframe Noise ◽  
Component Interaction ◽  
Tandem Cylinders ◽  
Interaction Studies

scholarly journals Unsteady Flowfield Around Tandem Cylinders as Prototype Component Interaction in Airframe Noise

AIAA Journal ◽  
2007 ◽  
Vol 45 (8) ◽  
pp. 1930-1941 ◽  
Author(s):  
Mehdi R. Khorrami ◽  
Meelan M. Choudhari ◽  
David P. Lockard ◽  
Luther N. Jenkins ◽  
Catherine B. McGinley
Keyword(s):  
Airframe Noise ◽  
Component Interaction ◽  
Tandem Cylinders

scholarly journals Airframe Noise Component Interaction Studies

1980 ◽  
Vol 17 (2) ◽  
pp. 99-105 ◽  
Author(s):  
Martin R. Fink ◽  
Robert H. Schlinker
Keyword(s):  
Noise Component ◽  
Airframe Noise ◽  
Component Interaction ◽  
Interaction Studies

Dynamic effects on high frequency unsteady flow structures

1990 ◽  
Author(s):  
JOHN KLINGE ◽  
SCOTT SCHRECK ◽  
MARVIN LUTTGES
Keyword(s):  
Unsteady Flow ◽  
High Frequency ◽  
Flow Structures ◽  
Dynamic Effects

Characterization of Coherent Flow Structures in a Swirl-Stabilized Spray Combustor

2021 ◽  
Author(s):  
Nicholas Rock ◽  
Scott D. Stouffer ◽  
Tyler H. Hendershott ◽  
Edwin Corporan ◽  
Paul Wrzesinski
Keyword(s):  
Flow Structures ◽  
Coherent Flow Structures

Helical Flow Disturbances in a Multi-Nozzle Combustor

2014 ◽  
Author(s):  
Michael Aguilar ◽  
Michael Malanoski ◽  
Gautham Adhitya ◽  
Benjamin Emerson ◽  
Vishal Acharya ◽  
...  
Keyword(s):  
Unsteady Flow ◽  
Field Measurements ◽  
Flow Fields ◽  
Helical Flow ◽  
Forced Response ◽  
Flow Structures ◽  
Response Dynamics ◽  
Flow Disturbances ◽  
Nozzle Configuration ◽  
Jet Interactions

This paper describes an experimental investigation of a transversely forced, swirl stabilized combustor. Its objective is to compare the unsteady flow structures in single and triple nozzle combustors and determine how well a single nozzle configuration emulates the characteristics of a multi-nozzle one. The experiment consists of a series of velocity field measurements captured on planes normal to the jet axis. As expected, there are differences between the single and triple-nozzle flow fields, but the differences are not large in the regions upstream of the jet merging zone. Direct comparisons of the time averaged flow fields reveal a higher degree of non-axisymmetry for the flowfields of nozzles in a multi-nozzle configuration. Azimuthal decompositions of the velocity fields show that the transverse acoustic forcing has an important influence on the dynamics, but that the single and multi-nozzle configurations have similar forced response dynamics near the dump plane. Specifically, the axial dependence of the amplitude in the highest energy axisymmetric and helical flow structures is quite similar in the two configurations. This result suggests that the hydrodynamic influence of one swirling jet on the other is minimal and, as such, that jet-jet interactions in this configuration do not have a significant influence on the unsteady flow structures.

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