Turbulent Boundary Layer Structure and Drag Reduction.

Abstract

The work under this grant has consisted of a fairly broadly aimed theoretical analysis along several fronts with the aim of understanding the basic mechanisms responsible for the creation of turbulence in a boundary layer and the possible use of this knowledge to explain observed phenomena of turbulent drag reduction through polymer addition, etc., as well as to be able to propose new and improved drag reducing methods. The work has progressed along three main lines of attack which are: (a) Theoretical modeling of boundary-layer turbulence; (b) Mechanisms involved in laminar-turbulent transition in a boundary layer; and (c) Drag reduction mechanisms. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1979
Accession Number
ADA065667

Entities

People

  • M. T. Landahl
  • S. E. Widnall

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Boundary Layer
  • Boundary Layer Transition
  • Computational Fluid Dynamics
  • Drag
  • Drag Reduction
  • Dynamics
  • Equations
  • Flow
  • Flow Fields
  • Fluid Dynamics
  • Layers
  • Scale Models
  • Shear Flow
  • Three Dimensional
  • Turbulence
  • Turbulent Boundary Layer
  • Turbulent Mixing

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Theoretical Analysis.