Indirect combustion noise: Experimental investigation of the vortex sound generation in accelerated swirling flows

2013 ◽  
Author(s):  
Nancy Kings ◽  
Lars Enghardt ◽  
Friedrich Bake
Keyword(s):  
Experimental Investigation ◽  
Swirling Flows ◽  
Combustion Noise ◽  
Sound Generation ◽  
Vortex Sound

scholarly journals Experimental investigation of entropy waves’ evolution for understanding of indirect combustion noise in gas turbine combustors

Energy ◽  
2020 ◽  
Vol 195 ◽  
pp. 116978 ◽  
Author(s):  
S.M. Hosseinalipour ◽  
A. Fattahi ◽  
H. Khalili ◽  
F. Tootoonchian ◽  
N. Karimi
Keyword(s):  
Experimental Investigation ◽  
Gas Turbine ◽  
Combustion Noise ◽  
Gas Turbine Combustors

Experimental investigation of helical structures in swirling flows

2012 ◽  
Vol 37 ◽  
pp. 51-63 ◽  
Author(s):  
Sven Grundmann ◽  
Florian Wassermann ◽  
Ramona Lorenz ◽  
Bernd Jung ◽  
Cameron Tropea
Keyword(s):  
Experimental Investigation ◽  
Swirling Flows ◽  
Helical Structures

scholarly journals Numerical and Experimental Investigation of Fuel Effects on Knock Occurrence and Combustion Noise in a 2-Stroke Engine

2012 ◽  
Vol 5 (2) ◽  
pp. 674-695 ◽  
Author(s):  
Fabio Bozza ◽  
Stefano Fontanesi ◽  
Alfredo Gimelli ◽  
Elena Severi ◽  
Daniela Siano
Keyword(s):  
Experimental Investigation ◽  
Combustion Noise ◽  
Fuel Effects ◽  
Stroke Engine

scholarly journals SIMULATION OF VORTEX SOUND USING THE VISCOUS/ACOUSTIC SPLITTING APPROACH

2011 ◽  
Vol 35 (1) ◽  
pp. 39-56
Author(s):  
Ting H. Zheng ◽  
Shiu K. Tang ◽  
Wen Z. Shen
Keyword(s):  
Flow Field ◽  
Flow Structure ◽  
Incompressible Flow ◽  
Analytical Solutions ◽  
Numerical Approach ◽  
Sound Generation ◽  
Vortex Sound ◽  
Acoustic Interaction ◽  
Unsteady Interaction ◽  
Good Agreement

A numerical viscous/acoustic splitting approach for the calculation of an acoustic field is applied to study the sound generation by a pair of spinning vortices and by the unsteady interaction between an inviscid vortex and a finite length flexible boundary. Based on the unsteady hydrodynamic information from the known incompressible flow field, the perturbed compressible acoustic terms are calculated and compared with analytical solutions. Results suggest that the present numerical approach produces results which are in good agreement with the analytical solutions. The present investigation verifies the applicability of the viscous/acoustic approach to flow structure-acoustic interaction.

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