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Numerical Simulation of Heat Transfer from Impinging Swirling Jets

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Author

Editor

  • R.S. Amano
  • B Sundén

Summary, in English

This chapter presents a brief review of studies on swirling and non-swirling impinging jets. Also, a numerical investigation of heat transfer from impinging swirling jets is described. Various turbulence models are used. Comparison with experimental data is provided. Generally, the V2f model was found to perform better than other models, but for small nozzle-to-plate distances, it was hard to maintain good or sufficient accuracy. The difference in performance, in terms of the Nusselt number distribution on the impingement wall, between swirling and non-swirling impinging jets was clearly identified. The magnitude of the swirling motion has great infl uence on the flow field and the formation of recirculating zones and accordingly the heat transfer process. Keywords: Swirling jet, heat transfer, CFD, turbulence modeling

Department/s

Publishing year

2014

Language

English

Pages

185-203

Publication/Series

Impingement Cooling In Gas Turbines: Design, Applications, And Limitations

Document type

Book chapter

Publisher

WIT Press

Topic

  • Energy Engineering

Keywords

  • Swirling jet
  • heat transfer
  • CFD
  • turbulence modeling

Status

Published

Research group

  • heat transfer

ISBN/ISSN/Other

  • ISBN: 978-1-84564-907-4
  • ISBN: 978-1-84564-906-7