Numerical study of heat transfer enhancement due to the use of fractal-shaped design for impingement cooling

Lin Cai, Zhuo Liu, Jianshu Gao, Xiao Liu

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1 Citation (SciVal)

Abstract

This paper describes a numerical analysis of a heat transfer enhancement technique that introduces fractal-shaped design for impingement cooling. Based on the gas turbine combustion chamber cooling, a fractal-shaped nozzle is designed for the constant flow area in a single impingement cooling model. The incompressible Reynolds-averaged Navier-Stokes equations are applied to the system using CFD software. The numerical results are compared with the experiment results for array impingement cooling.

Original languageEnglish
Pages (from-to)S33-S38
JournalThermal Science
Volume21
DOIs
Publication statusPublished - 2017

Subject classification (UKÄ)

  • Fluid Mechanics and Acoustics
  • Energy Engineering

Keywords

  • CFD
  • Fractal-shaped
  • Heat transfer number
  • Impingement cooling
  • Navier-Stokes equation

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