Radiated noise from turbulent boundary layers in dilute polymer solutions

Journal Article · Sat Sep 01 04:00:00 EDT 1973 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.1694530· OSTI ID:6861158

Barker, S J

Measurements of radiated noise and wall-pressure fluctuations in a turbulent boundary layer in water are described. A comparison is made between results obtained in pure water and in dilute solutions of drag-reducing polymers. A new experimental geometry was developed to obtain these measurements. The experiment consisted of a spiral-shaped plate which was rotated about its central axis in a stationary fluid, generating a turbulent boundary layer upon its inner surface. This boundary layer is shown to resemble that upon a flat plate in a uniform free stream. Wall-pressure fluctuations under the boundary layer were measured with piezoelectric transducers mounted flush in the wall of the spiral plate. Noise radiated from the boundary layer was measured with a stationary transducer located outside of the boundary layer. All measurements were made as a comparison between water and dilute polymer solutions. (19 refs.)

• Research Organization: California Inst. Tech., Pasadena
• OSTI ID: 6861158
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 16:9; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
BOUNDARY LAYERS
DRAG
ENHANCED RECOVERY
FLUID FLOW
HYDROGEN COMPOUNDS
LAYERS
NOISE
OXYGEN COMPOUNDS
POLYMERS
PRESSURE GRADIENTS
RECOVERY
TRANSDUCERS
TURBULENT FLOW
WATER