Unsteady simulations for an advanced-louver cooling scheme

Chad X Z Zhang, Sung In Kim, Ibrahim Hassan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The performance of a louver cooling scheme on a flat plate was analyzed using Detached Eddy Simulation. It was assumed that the louver cooling scheme was tested in a wind tunnel with the mainstream flow velocity of 20 mIs, equivalent to a Reynolds number of 16200 based on the jet diameter. Turbulence closure was achieved by a Realizable k- based DES turbulence model. Solutions of two blowing ratios of 0.5 and 1 were successfully obtained by running parallel on 16 nodes on a computer cluster. The instantaneous flow fields were found to be highly unsteady and oscillatory in nature. It is shown that the fluctuations in the adiabatic effectiveness are mainly caused by the spanwise fluctuation of the coolant jet and the unsteady vortical structures created by the interaction of the jet and the mainstream.

Original languageEnglish
Title of host publication2008 Proceedings of the ASME Turbo Expo: Power for Land, Sea, and Air
Pages2057-2066
Number of pages10
Volume6
EditionPART C
DOIs
Publication statusPublished - 2008
Externally publishedYes
Event2008 ASME Turbo Expo - Berlin, Germany
Duration: 9 Jun 200813 Jun 2008

Other

Other2008 ASME Turbo Expo
CountryGermany
CityBerlin
Period9/6/0813/6/08

Fingerprint

Cooling
Blow molding
Turbulence models
Flow velocity
Coolants
Wind tunnels
Flow fields
Reynolds number
Turbulence

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Zhang, C. X. Z., Kim, S. I., & Hassan, I. (2008). Unsteady simulations for an advanced-louver cooling scheme. In 2008 Proceedings of the ASME Turbo Expo: Power for Land, Sea, and Air (PART C ed., Vol. 6, pp. 2057-2066) https://doi.org/10.1115/GT2008-51477

Unsteady simulations for an advanced-louver cooling scheme. / Zhang, Chad X Z; Kim, Sung In; Hassan, Ibrahim.

2008 Proceedings of the ASME Turbo Expo: Power for Land, Sea, and Air. Vol. 6 PART C. ed. 2008. p. 2057-2066.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Zhang, CXZ, Kim, SI & Hassan, I 2008, Unsteady simulations for an advanced-louver cooling scheme. in 2008 Proceedings of the ASME Turbo Expo: Power for Land, Sea, and Air. PART C edn, vol. 6, pp. 2057-2066, 2008 ASME Turbo Expo, Berlin, Germany, 9/6/08. https://doi.org/10.1115/GT2008-51477
Zhang CXZ, Kim SI, Hassan I. Unsteady simulations for an advanced-louver cooling scheme. In 2008 Proceedings of the ASME Turbo Expo: Power for Land, Sea, and Air. PART C ed. Vol. 6. 2008. p. 2057-2066 https://doi.org/10.1115/GT2008-51477
Zhang, Chad X Z ; Kim, Sung In ; Hassan, Ibrahim. / Unsteady simulations for an advanced-louver cooling scheme. 2008 Proceedings of the ASME Turbo Expo: Power for Land, Sea, and Air. Vol. 6 PART C. ed. 2008. pp. 2057-2066
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