Accession Number:

AD0780449

Title:

The Influence of Shear on Mixing across Density Interfaces.

Descriptive Note:

Technical rept.,

Corporate Author:

JOHNS HOPKINS UNIV BALTIMORE MD

Personal Author(s):

• Long,Robert R.

Report Date:

1974-06-01

Pagination or Media Count:

33.0

Abstract:

The paper discussed critically experimental observations of mixing processes across density interfaces in laboratory experiments and inferences that have been made and can be made from these observations. It is shown that the drag coefficient in flow of a stratified fluid over a rough surface is independent of the Richardson number or density jump across the interface or inversion and depends only on the ratio of the roughness length to the depth of the homogeneous layer. This has obvious implications for problems of parameterizing the momentum flux near the ground in the atmosphere. Modified author abstract

Descriptors:

• *Air water interactions
• *Turbulence
• *Shear properties
• Buoyancy
• Thermoclines
• Entrainment
• Partial differential equations

Subject Categories:

• Meteorology
• Physical and Dynamic Oceanography
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE