Accession Number:

AD0743132

Title:

Shadowgraph Observations of the Flow Past a Sphere and a Vertical Cylinder in a Density Stratified Liquid

Descriptive Note:

Technical rept.

Corporate Author:

MICHIGAN UNIV ANN ARBOR DEPT OF ENGINEERING MECHANICS

Personal Author(s):

• Debler, Walter R.
• Fitzgerald, Peter

Report Date:

1971-12-01

Pagination or Media Count:

45.0

Abstract:

Shadowgraphs were made of the flow past a sphere in water that was vertically stratified with sodium chloride. The intent was to explore the flow patterns at low Reynolds numbers with particular emphasis on any asymmetries due to the stratification. The shadowgraphs recorded three-dimensional phenomena and the visualization was in agreement with that obtained with dye inserted at the sphere. Thus the optical technique is useful even though the lack of two- dimensionality prohibits the drawing of any quantitative conclusions.

Descriptors:

• *FLUID DYNAMICS
• *TOWED BODIES
• EXPERIMENTAL DATA
• TEST METHODS
• VORTICES
• FLOW VISUALIZATION
• SALTS
• FLOW SEPARATION
• SPARK SHADOWGRAPH PHOTOGRAPHY
• WATER TANKS

Subject Categories:

• Test Facilities, Equipment and Methods
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE