Accession Number : ADA255858


Title :   Inviscid Vortex Motions in Weakly Three-Dimensional Boundary Layers and their Relation with Instabilities in Stratified Shear Flows


Descriptive Note : Research rept.


Corporate Author : INSTITUTE FOR COMPUTER APPLICATIONS IN SCIENCE AND ENGINEERING HAMPTON VA


Personal Author(s) : Blackaby, Nicholas D ; Choudhari, Meelan


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a255858.pdf


Report Date : Aug 1992


Pagination or Media Count : 20


Abstract : In this report, the authors consider the inviscid instability of three-dimensional boundary-layer flows with a small crossflow over locally concave or convex walls, along with the inviscid instability of stratified shear flows. They show how these two problems are closely related through the forms of their governing equations. A proposed definition of a generalized Richardson number for the neutrally stable inviscid vortex motions is given. Implications of the similarity between the two problems are discussed.


Descriptors :   *THREE DIMENSIONAL , *INVISCID FLOW , *SHEAR FLOW , *INSTABILITY , *BOUNDARY LAYER FLOW , *CROSS FLOW , VORTICES , WALLS , CONCAVE BODIES , RICHARDSON NUMBER , CONVEX BODIES , REYNOLDS NUMBER


Subject Categories : Fluid Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE