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Flow fields investigation and temperature distribution on a rotating disk imposed by a turbulent impinging jet

Karrabi, H ; Sharif University of Technology | 2010

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  1. Type of Document: Article
  2. DOI: 10.1115/IHTC14-23236
  3. Publisher: 2010
  4. Abstract:
  5. Numerical investigation of fluid flow structure and convective heat transfer due to a circular jet impinging on a rotating disk is performed. Temperature and convection heat transfer coefficient are calculated. Flow is considered to be steady, incompressible and turbulent. k-ε RNG model is used to model the turbulent flow. Results are compared with experimental data showing good agreement. Two new criteria are introduced and used to evaluate the performance of cooling process, the first is maximum temperature difference on the disk, and the second is the average temperature of the disk. The first parameter shows the uniformity of temperature distribution in the disk and the second shows the effect of both thermo physical properties of the disk material and cooling process
  6. Keywords:
  7. Convective heat transfer ; Cooling process ; Disk material ; Experimental data ; Jet impinging ; Maximum temperature ; Numerical investigations ; RNG model ; Thermo-physical property ; Turbulent impinging jet ; Heat convection ; Rotating disks ; Temperature distribution
  8. Source: 2010 14th International Heat Transfer Conference, IHTC 14, 8 August 2010 through 13 August 2010, Washington, DC ; Volume 5 , 2010 , Pages 719-725 ; 9780791849408 (ISBN)
  9. URL: http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=1620510