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**Harvard**

Niebles Atencio, B. (2011) *Measurements and Prediction of Laminar Turbulent Transition at High Free-Stream Turbulence in Boundary Layers with Pressure Gradients *. (Diploma work - Department of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, nr: 2011:37).

** BibTeX **

@mastersthesis{

Niebles Atencio2011,

author={Niebles Atencio, Bercelay M.},

title={Measurements and Prediction of Laminar Turbulent Transition at High Free-Stream Turbulence in Boundary Layers with Pressure Gradients },

abstract={The laminar-turbulent transition has significant influence on determining the aerodynamic characteristics of immersed bodies such as evolution of losses, the appearance of separation and stall. Also, the transition behavior has a dominant effect on the distributions of wall shear stress and surface heat transfer. To predict and manage the turbulence in different flow cases is beneficial for optimum advantage, namely, to reduce it when it is harmful (e.g. to decrease the skin friction or heat transfer) and to increase it when it is desirable (to avoid flow separation). The prediction of transition at high free-stream turbulence is of particular importance in turbomachinery where the boundary layer state defines the blade heat transfer and the flow separation margins.
This project report presents 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 current study is the validation of the turbulence model which can be used for such engineering applications.},

year={2011},

series={Diploma work - Department of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, no: 2011:37},

keywords={Aerodynamics, Laminar-Turbulent Transition, High Free-Stream Turbulence, Shear Stress, Heat Transfer, Turbulence, Flow Separation, Turbomachinery, Laminar, Pressure Gradient, Experiments},

}

** RefWorks **

RT Generic

SR Electronic

ID 147793

A1 Niebles Atencio, Bercelay M.

T1 Measurements and Prediction of Laminar Turbulent Transition at High Free-Stream Turbulence in Boundary Layers with Pressure Gradients

YR 2011

AB The laminar-turbulent transition has significant influence on determining the aerodynamic characteristics of immersed bodies such as evolution of losses, the appearance of separation and stall. Also, the transition behavior has a dominant effect on the distributions of wall shear stress and surface heat transfer. To predict and manage the turbulence in different flow cases is beneficial for optimum advantage, namely, to reduce it when it is harmful (e.g. to decrease the skin friction or heat transfer) and to increase it when it is desirable (to avoid flow separation). The prediction of transition at high free-stream turbulence is of particular importance in turbomachinery where the boundary layer state defines the blade heat transfer and the flow separation margins.
This project report presents 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 current study is the validation of the turbulence model which can be used for such engineering applications.

T3 Diploma work - Department of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden, no: 2011:37

LA eng

LK http://publications.lib.chalmers.se/records/fulltext/147793.pdf

OL 30