A numerical strategy to compute optical parameters in turbulent flow: Application to telescopes |
| |
| Authors: | Ramon Codina Joan Baiges Manuel Collados |
| |
| Affiliation: | a International Center for Numerical Methods in Engineering (CIMNE), Universitat Politècnica de Catalunya, Jordi Girona 1-3, Edifici C1, 08034 Barcelona, Spain
b Instituto de Astrofísica de Canarias, Via Láctea s/n, 38205 La Laguna, Tenerife, Spain |
| |
| Abstract: | 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. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
