A numerical strategy to compute optical parameters in turbulent flow: application to telescopes
We present a numerical formulation to compute optical parameters in a turbulent air flow. The basic numerical formulation is a large eddy simulation (LES) of the incompressible Navier–Stokes equations, which are approximated using a finite element method. From the time evolution of the flow paramete...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2010 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/7722 |
| Acceso en línea: | https://hdl.handle.net/2117/7722 https://dx.doi.org/10.1016/j.compfluid.2009.07.005 |
| Access Level: | acceso abierto |
| Palabra clave: | Navier-Stokes equations Equacions de Navier-Stokes Àrees temàtiques de la UPC::Física |
| Sumario: | We present a numerical formulation to compute optical parameters in a turbulent air flow. The basic numerical formulation is a large eddy simulation (LES) of the incompressible Navier–Stokes equations, which are approximated using a finite element method. From the time evolution of the flow parameters we describe how to compute statistics of the flow variables and, from them, the parameters that determine the quality of the visibility. The methodology is applied to estimate the optical quality around telescope enclosures. |
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