Accession Number:

ADA172297

Title:

Design and Evaluation of NUSC's Flow Loop Facility.

Descriptive Note:

Technical document,

Corporate Author:

NAVAL UNDERWATER SYSTEMS CENTER NEWPORT RI

Personal Author(s):

• Lefebvre,P. J.

Report Date:

1986-05-01

Pagination or Media Count:

51.0

Abstract:

A unique Flow Loop Facility capable of providing steady state and user defined transient flows e.g., constant or exponential acceleration was designed and built. Transient capabilities include acceleration of the flow to velocities of 30 ftsec under accelerations up to 20 ftsec sq in circular test sections up to 6 inches in diameter. Provisions have been made for the future addition of larger test sections up to 12 inches in diameter with flows having accelerations up to 10 ft sec sq and velocities of 30 ftsec. Tests showed that the entrance condition to a 2-inch-diameter test section had a velocity profile uniform within 1 percent and a maximum turbulence intensity of 1.31 percent. Keywords Hydrodynamics Test facilities Hydroacoustics.

Descriptors:

• *HYDRODYNAMICS
• *WATER TUNNELS
• VELOCITY
• STEADY STATE
• TRANSIENTS
• CONTROL SYSTEMS
• HIGH RATE
• ACCELERATION
• FACILITIES
• PROFILES
• FLOW RATE
• ACOUSTIC MEASUREMENT
• FLOW
• NAVAL SHORE FACILITIES
• LOOPS
• TEST FACILITIES
• UNDERWATER SOUND
• CIRCULAR
• BOUNDARY LAYER FLOW
• RHODE ISLAND

Subject Categories:

• Test Facilities, Equipment and Methods
• Acoustics
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE