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The Applicability Analysis of the Usually Applied Turbulence Models and the Numerical Simulation of the Flow around a Foil Using VOF Method

Author: WangLi
Tutor: ZhangZhiGuo
School: Huazhong University of Science and Technology
Course: Design and manufacture of ships and marine structures
Keywords: Turbulence model VOF method Numerical Simulation Free surface Airfoil
CLC: O357.5
Type: Master's thesis
Year: 2007
Downloads: 645
Quote: 8
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Abstract


With the improvement of computer capabilities , numerical simulation of turbulence in engineering design , more and more widespread , and the choice of a suitable turbulence model in the numerical calculation is very important . At the same time , the widespread presence of the free surface flow problems numerical simulation of flow problems with a free surface has great engineering significance . Commonly used turbulence model applicability analysis and NACA 0024 airfoil with a free surface flow numerical calculation of two parts . First, conduct a review of the development of the theory of turbulence models , various turbulence models and numerical calculation method , the description of the system , at the same time several turbulent numerical simulation used turbulence models : the standard k-ε turbulence model, RNG k -ε turbulence model , low Reynolds number k-ε turbulence model , the standard k-ω turbulence model and large eddy simulation (LES) were summarized and analyzed , given their respective scope of application and precautions for use. Since then, the numerical simulation of impinging jet with low Reynolds number k-ε turbulence model and the standard k-ω turbulence model , the calculated results are in good agreement with the experimental results of the University of Minnesota , USA . Combined with VOF method and PLIC interface reconstruction method and finite volume method (FVM) NACA 0024 airfoil with a free surface flows in a the different Fu Rude number of conditions under the numerical calculation , respectively, from the free surface boundary layer separation airfoil wave with a IIHR-Hydroscience Engineering IOWA University , USA experimental results were compared , and achieved satisfactory results lay the foundation for the numerical simulation of the complex in the future with a free surface flow problems .

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CLC: > Mathematical sciences and chemical > Mechanics > Fluid Mechanics > Viscous fluid > Turbulence ( turbulence )
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