Numerical simulation for fan broadband noise prediction

Takaaki Hase, Nobuhiko Yamasaki, Tsutomu Ooishi

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


In order to elucidate the broadband noise of fan, the numerical simulation of fan operating at two different rotational speeds is carried out using the three-dimensional unsteady Reynolds-averaged Navier-Stokes (URANS) equations. The computed results are compared to experiment to estimate its accuracy and are found to show good agreement with experiment. A method is proposed to evaluate the turbulent kinetic energy in the framework of the Spalart-Allmaras one equation turbulence model. From the calculation results, the turbulent kinetic energy is visualized as the turbulence of the flow which leads to generate the broadband noise, and its noise sources are identified.

Original languageEnglish
Pages (from-to)58-63
Number of pages6
JournalJournal of Thermal Science
Issue number1
Publication statusPublished - Mar 2011

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


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