Accession Number:

ADA067561

Title:

Pressure on the Interface between a Converging Fluid Wedge and a Fast Fluid Bottom.

Descriptive Note:

Master's thesis,

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s):

• Kawamura,Masami
• Ioannou,Ioannis

Report Date:

1978-12-01

Pagination or Media Count:

103.0

Abstract:

The pressure amplitude and phase distribution along the interface between a tapered fluid layer and an underlying fast fluid bottom were investigated both theoretically and experimentally. Two different theoretical models were compared experimentally a simple model based on a combination of normal modes and ray theory and an exact solution based on the method of images. The experiment was conducted at 100 kHz with a wedge of silicon oil separated from a large tank of fresh water by a thin Mylar diaphragm. The simple model failed to predict adequately the pressure amplitude and phase along the interface. The method of images gave accurate predictions. Author

Descriptors:

• *FLUID DYNAMICS
• *PRESSURE DISTRIBUTION
• MATHEMATICAL MODELS
• THESES
• PHASE
• POLYMERIC FILMS
• OILS
• WEDGES
• AMPLITUDE
• SOUND PRESSURE
• SILICONES
• DIAPHRAGMS(MECHANICS)
• UNDERWATER SOUND SIGNALS
• WATER TANKS
• POLYETHYLENE TEREPHTHALATE

Subject Categories:

• Acoustics
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE