On near-wall collateral flow in skewed turbulent boundary layers

Hebbar, KS (1977) On near-wall collateral flow in skewed turbulent boundary layers. AIAA Journal, 15 (10). pp. 1509-1511. ISSN 0001-1452

Full text available as:
[img] PDF
Download (806Kb)

    Abstract

    Existence of a collateral flowfield in the inner boundary layer region very close to the wall is probed. The near-wall region of a three-dimensional turbulent air boundary layer relaxing in a nominally zero external pressure gradient behind a transverse hump faired into the sidewall of a low-speed wind tunnel. Hot-wire data and polar plots of mean velocity profile are exhibited. Difficulties in measurement of near-wall skewed flows are indicated. Possible crossflow reversal triggered by slight lateral adverse pressure gradients and producing a collateral layer are considered; in their absence, a noncollateral flowfield in the neighborhood of the wall is found consistent with the equations of motion.

    Item Type: Journal Article
    Uncontrolled Keywords: Boundary layer flow;Flow distribution;Three dimensional boundary layer;Turbulent boundary layer;Wall flow;Cross flow;Pressure gradients;Velocity distribution;Wind tunnel tests
    Subjects: ENGINEERING > Fluid Mechanics and Thermodynamics
    Division/Department: Aerodynamics
    Depositing User: Ms. Alphones Mary
    Date Deposited: 02 May 2006
    Last Modified: 24 May 2010 09:40
    URI: http://nal-ir.nal.res.in/id/eprint/1198

    Actions (login required)

    View Item