Flow Simulation Around Cambered Airfoil by Using Conformal Mapping and Intermediate Domain in Lattice Boltzmann Method
| Autor: | Masoud Mirzaei, Amin Poozesh |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Airfoil
business.industry Lattice Boltzmann methods Statistical and Nonlinear Physics 02 engineering and technology Mechanics Computational fluid dynamics 021001 nanoscience & nanotechnology 01 natural sciences 010305 fluids & plasmas Physics::Fluid Dynamics Lift (force) Classical mechanics Incompressible flow Drag 0103 physical sciences Fluid dynamics 0210 nano-technology business Joukowsky transform Mathematical Physics Mathematics |
| Zdroj: | Journal of Statistical Physics. 166:354-367 |
| ISSN: | 1572-9613 0022-4715 |
| Popis: | In this paper the developed interpolation lattice Boltzmann method is used for simulation of unsteady fluid flow. It combines the desirable features of the lattice Boltzmann and the Joukowski transformation methods. This approach has capability to simulate flow around curved boundary geometries such as airfoils in a body fitted grid system. Simulation of unsteady flow around a cambered airfoil in a non-uniform grid for the first time is considered to show the capability of this method for modeling of fluid flow around complex geometries and complicated long-term periodic flow phenomena. The developed solver is also coupled with a fast adaptive grid generator. In addition, the new approach retains all the advantages of the standard lattice Boltzmann method. The Strouhal number, the pressure, the drag and the lift coefficients obtained from the simulations agree well with classical computational fluid dynamics simulations. Numerical studies for various test cases illustrate the strength of this new approach. |
| Databáze: | OpenAIRE |
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