Accession Number:

AD0679723

Title:

A DUCTED IMPELLOR FLOWMETER FOR SHALLOW-WATER MEASUREMENTS OF INTERNAL VELOCITIES IN BREAKING WAVES.

Descriptive Note:

Technical rept.,

Corporate Author:

MICHIGAN STATE UNIV EAST LANSING DEPT OF GEOLOGY

Personal Author(s):

• Wood,William L. , Jr

Report Date:

1968-11-01

Pagination or Media Count:

67.0

Abstract:

An inexpensive ducted impellor flowmeter has been developed for investigation of the internal kinematics of shallow water waves. The flowmeter has a dynamic velocity range from 0.0 to 15.7 feet per second, a hyperbolic response to axial flow, and a cosine response to off-axis flow. General hydrodynamic considerations in duct design are discussed and are applied to the design of the flowmeter. Dynamic testing showed that the flowmeters response to orbital flow, similar to that found in shallow water waves, correlated excellently with the axial calibration of the meter. Author

Descriptors:

• *FLOWMETERS
• *WATER WAVES
• MEASUREMENT
• SHALLOW WATER
• RESPONSE
• AXISYMMETRIC FLOW
• FLOW FIELDS
• TEST METHODS
• CALIBRATION
• HYDRODYNAMICS
• OCEAN WAVES
• DETECTORS

Subject Categories:

• Physical and Dynamic Oceanography
• Test Facilities, Equipment and Methods
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE