EXPERIMENTAL DETERMINATION OF CRITICAL BLOW-IN PARAMETER ON A POROUS PLATE (EKSPERIMENTALNOE OPREDELENIE KRITICHESKOGO PARAMETRA VDUVA NA PORISTOI PLASTINE),

Abstract

Experimental data on the determination of the critical blowing parameter on a porous plate are given. The method is based on the chemical reaction of the main stream with the fluid injected. The main stream is an acid solution and the injected fluid is an alkali solution colored by phenolphthalein. With injection flow rates below critical, a neutralization reaction takes place which results in decoloration of phenolphthalein. At critical injection flow rates, the main stream is displaced, and a clearly distinguishable film of the injected liquid appears on the plate surface. The experimental values of the critical injection parameter are in good agreement with the predicted ones obtained by the asymptotic theory of the turbulent boundary layer. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 28, 1967
Accession Number
AD0670912

Entities

People

  • A. I. Leontev
  • B. P. Mironov
  • P. P. Lugovskoy

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Acids
  • Agreements
  • Boundaries
  • Boundary Layer
  • Chemical Reactions
  • Experimental Data
  • Flow Rate
  • Indicator Dyes
  • Layers
  • Neutralization
  • Turbulent Boundary Layer

Readers

  • Analytical Chemistry
  • Fluid Dynamics.
  • Information Retrieval