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An Experimental Study on Laminar-Turbulent Transition at High Free-Stream Turbulence in Boundary Layers with Pressure Gradients

Bercelay M. Niebles Atencio (Institutionen för tillämpad mekanik, Strömningslära) ; Valery Chernoray (Institutionen för tillämpad mekanik, Strömningslära) ; Mohsen Jahanmiri (Institutionen för tillämpad mekanik, Strömningslära)
EFM11 - Experimental Fluid Mechanics 2011. Conference on Experimental Fluid Mechanics, 22-25 November 2011, Jičín, Czech Republic (2100-014X). Vol. 25 (2011), p. Art. no. 01012.
[Konferensbidrag, refereegranskat]

We report here the results of a study on measurements and prediction of laminar-turbulent transition at high free-stream turbulence in boundary layers of the airfoil-like geometries with presence of the external pressure gradient changeover. The experiments are performed for a number of flow cases with different flow Reynolds number, turbulence intensity and pressure gradient distributions. The results were then compared to numerical calculations for same geometries and flow conditions. The experiments and computations are performed for the flow parameters which are typical for turbomachinery applications and the major idea of the current study is the validation of the turbulence model which can be used for such engineering applications.



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Denna post skapades 2011-11-30. Senast ändrad 2017-01-26.
CPL Pubid: 149213

 

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Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Strömningslära (2005-2017)

Ämnesområden

Energi
Transport
Hållbar utveckling
Teknisk mekanik
Strömningsmekanik

Chalmers infrastruktur