Application of nontraditional processing methods to transitional and turbulent boundary layer flow-noise-induced signals

Richard A. Katz; Thomas A. Galib; Joan Cembrola

doi:10.1117/12.162682

18 November 1993 Application of nontraditional processing methods to transitional and turbulent boundary layer (tbl) flow-noise-induced signals

Richard A. Katz, Thomas A. Galib, Joan Cembrola

Author Affiliations +

Proceedings Volume 2038, Chaos in Communications; (1993) https://doi.org/10.1117/12.162682
Event: SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, 1993, San Diego, CA, United States

Abstract

This research applies dynamical system methods (i.e., Chaos Theory) to the processing of time sequences of transitional and turbulent wall-pressures impinging on the face of station probes mounted along the wall of an axisymmetric body of revolution during a buoyant ascent from the bottom of a deep water test basin. It is demonstrated that the turbulent pressure fluctuations for this experiment can be described as a dynamical system of sufficiently low order (i.e., less than ten degrees of freedom). This opens up several possibilities for the control of turbulence. In underwater acoustics this translates to flow noise reduction in sonar applications and to drag reduction in ship dynamics. Other potential commercial applications include control of flow through pipelines, and aerodynamic design.

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Richard A. Katz, Thomas A. Galib, and Joan Cembrola "Application of nontraditional processing methods to transitional and turbulent boundary layer (tbl) flow-noise-induced signals", Proc. SPIE 2038, Chaos in Communications, (18 November 1993); https://doi.org/10.1117/12.162682

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