SPLITTER EFFECT IN CONICAL DIFFUSERS. PART II. OPTIMUM DESIGN PROCEDURE, EXPERIMENTAL PHASE, INCOMPRESSIBLE FLOW.

Abstract

A method of designing a ring-airfoil, used as a performance improving device in a conical diffuser, derived from experimental results is reported. The applicable ranges of diffuser wall length to inlet radius, L/R and the angle of divergence, 2 phi sub d, are 4 < or = L/R sub 1 < or = 6 and 14 deg < or = 2 phi sub d < or = 22 deg respectively. With a properly installed ring-airfoil, the diffuser pressure recovery efficiency may be maintained at 75% or higher throughout the above mentioned range, while performance of diffusers in this range without the ring airfoil lies between 50 - 70%. The Reynolds number and compressibility effects were neglected. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1966
Accession Number
AD0488196

Entities

People

  • Tah-teh Yang

Organizations

  • Clemson University

Tags

DTIC Thesaurus Topics

  • Compressive Properties
  • Diffusers
  • Efficiency
  • Flow
  • Fluid Dynamics
  • Fluid Flow
  • Incompressible Flow
  • Lepidoptera
  • Mechanical Properties
  • Mechanics
  • Recovery
  • Reynolds Number

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Mathematics or Statistics
  • Systems Analysis and Design