Coupling DNS with Polymer Models for Flow Control

Abstract

This paper discusses the coupling of polymer models with direct numerical simulation (DNS) toward understanding, modeling, and controlling turbulent boundary layer flows for drag reduction. Experiments have demonstrated that a dilute polymer solution injected into a turbulent flow can result in up to 80% drag reduction. Pipe, channel, and flat plate experiments are summarized to highlight similarities and differences in the flows associated with the polymer-induced drag reduction process. Constitutive and kinetic approaches to polymer modeling are then discussed with their respective couplings to DNS.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2001
Accession Number
ADP013632

Entities

People

  • Ronald D. Joslin

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Boundary Layer
  • Boundary Layer Flow
  • Channel Flow
  • Computational Fluid Dynamics
  • Constitutive Equations
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Hydrodynamics
  • Hypervelocity Flow
  • Mechanical Properties
  • Mechanics
  • Pipe Flow
  • Reynolds Number
  • Turbulence
  • Turbulent Flow

Fields of Study

  • Physics

Readers

  • Computational Modeling and Simulation
  • Fluid Dynamics.
  • Nanocomposite Materials Science