Title : ( Investigating the effects of numerical discretisation on the accuracy of incompressible turbulent flow solution around NACA 0012 airfoil )
Authors: FARSHAD REZAEI , Ehsan Roohi , Mahmoud Pasandidehfard ,
Full TextAbstract
In this paper we study the influence of grid size, finite volume discritization schemes, and Reynolds number on the accuracy of turbulent flow solution over NACA 0012 airfoil using the OpenFOAM package. Different grid sizes have been examined and the suitable mesh with accurate C_L had been presented. Additionally, it was observed that the accuracy of solution increases and the error of computing the C_L and C_D decreases if we suitably improve the discritization schemes of the momentum equation. Among different discritization schemes, the best result is obtained once we tried linear discretisation method for the divergence term and fourth order discretisation method for the pressure gradient term. The effect of Reynolds number on the accuracy of solution has also been investigated and it was found that C_L and C_D becomes more accurate at higher Reynolds numbers.
Keywords
, NACA 0012 airfoil, finite volume method, OpenFOAM, discretisation scheme.
@inproceedings{paperid:1030661,
author = {REZAEI, FARSHAD and Roohi, Ehsan and Pasandidehfard, Mahmoud},
title = {Investigating the effects of numerical discretisation on the accuracy of incompressible turbulent flow solution around NACA 0012 airfoil},
booktitle = {اولین کنفرانس ملی آیرودینامیک و هیدرودینامیک},
year = {2012},
location = {تهران, IRAN},
keywords = {NACA 0012 airfoil; finite volume method; OpenFOAM; discretisation scheme.},
}
%0 Conference Proceedings
%T Investigating the effects of numerical discretisation on the accuracy of incompressible turbulent flow solution around NACA 0012 airfoil
%A REZAEI, FARSHAD
%A Roohi, Ehsan
%A Pasandidehfard, Mahmoud
%J اولین کنفرانس ملی آیرودینامیک و هیدرودینامیک
%D 2012
