Study on the Fluctuating Wall Pressure Field and the Coherent Structure in the Turbulent Boundary Layer

2004 ◽  
Vol 2004.53 (0) ◽  
pp. 303-304
Author(s):  
Yasuhiko SAKAI ◽  
Takeo OOTSUKA ◽  
Takehiro KUSHIDA ◽  
Hironao YOKOI
Keyword(s):  
Boundary Layer ◽  
Turbulent Boundary Layer ◽  
Coherent Structure ◽  
Pressure Field ◽  
Wall Pressure

Decay of fluctuating wall-pressure field of Mach 5 turbulent boundary layer

AIAA Journal ◽  
1999 ◽  
Vol 37 ◽  
pp. 1088-1096
Author(s):  
O. H. Unalmis ◽  
D. S. Dolling
Keyword(s):  
Boundary Layer ◽  
Turbulent Boundary Layer ◽  
Pressure Field ◽  
Wall Pressure

Fluid-Loaded Vibration due to a Non-Homogeneous Turbulent Boundary Layer

2014 ◽  
Author(s):  
Jason R. Tomko ◽  
Scott C. Morris
Keyword(s):  
Boundary Layer ◽  
Turbulent Boundary Layer ◽  
Pressure Field ◽  
Wall Pressure ◽  
Mode Shapes ◽  
Phase Identification ◽  
Structural Acoustics ◽  
Spatially Homogeneous ◽  
Layer Flow ◽  
Loaded Structure

Flow-induced structural acoustics involves the study of the vibration of a structure induced by a fluid flow as well as the resulting sound generated and radiated by the motion of the structure. A thin rectangular, structure, non-fluid-loaded was excited by turbulent boundary layer flow. A method called magnitude-phase identification (MPI) is derived to measure modal information from a structure using only two-point measurements. Using MPI, the mode shapes and the auto-spectral density of vibration of each mode was measured and found to agree well with the theoretical values. When the non-fluid-loaded structure was excited with a spatially non-homogeneous wall pressure field or fluid-loaded structure was excited with a spatially homogeneous wall pressure field, the measured mode shapes were found to be the same as those predicted by theory. When a fluid-loaded structure was excited with a spatially non-homogeneous wall pressure field, the mode shapes were found to change. This suggests that standard modal analysis may not be sufficient to predict the vibration of fluid-loaded structures, as such theory assumes that the mode shapes of the structure are independent of the method by which the structure is excited.

Decay of Fluctuating Wall-Pressure Field of Mach 5 Turbulent Boundary Layer

AIAA Journal ◽  
10.2514/2.837 ◽  
1999 ◽  
Vol 37 (9) ◽  
pp. 1088-1096 ◽  
Author(s):  
O. H. Unalmis ◽  
D. S. Dolling
Keyword(s):  
Boundary Layer ◽  
Turbulent Boundary Layer ◽  
Pressure Field ◽  
Wall Pressure

Near-wall pressure field in a turbulent boundary layer on a rough surface

1975 ◽  
Vol 9 (3) ◽  
pp. 390-394
Author(s):  
V. P. Marshov ◽  
A. V. Smol'yakov
Keyword(s):  
Boundary Layer ◽  
Turbulent Boundary Layer ◽  
Rough Surface ◽  
Pressure Field ◽  
Wall Pressure ◽  
Near Wall

Transmission of a turbulent boundary layer wall pressure field through an elastomeric coating

2012 ◽  
Vol 47 ◽  
pp. 43-49
Author(s):  
William L. Keith ◽  
Alia W. Foley ◽  
Kimberly M. Cipolla
Keyword(s):  
Boundary Layer ◽  
Turbulent Boundary Layer ◽  
Pressure Field ◽  
Wall Pressure
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