Convection in the Closed Brayton Cycle.

Abstract

To correspond to conditions expected in components in the closed Brayton cycle, analyses and experiments were conducted for forced convective heat transfer to gases and gas mixtures flowing in ducts. The range of interest was 0.2 = or < than Pr = or < than 0.7, representing mixtures of inert gases. Numerical analyses predicted that existing scaling laws for gases would not represent the Prandtl number dependence adequately for laminar or turbulent flow. Measurements with an argon-helium mixture confirmed the trends of the predictions for turbulent flow in circular tubes. The wall turbulent Prandtl number was determined for 0.4 = or < than Pr = or < than 0.5. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1977
Accession Number
ADA047262

Entities

People

  • D. M. Mceligot
  • M. F. Taylor
  • P. E. Picket

Organizations

  • University of Arizona

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Brayton Cycles
  • Computational Fluid Dynamics
  • Energy
  • Engineering
  • Fluid Dynamics
  • Heat Energy
  • Heat Transfer
  • Laminar Flow
  • Measurement
  • Mechanical Engineering
  • Numerical Analysis
  • Thermal Conductivity
  • Thermodynamics
  • Transport Properties
  • Turbines
  • Turbulent Flow

Readers

  • Combustion and Flow Dynamics.
  • Combustion science or combustion engineering.