ISSN:
1069-8299
Keywords:
k-∊-γ model
;
turbulent intermittency
;
wake
;
aerofoil
;
non-staggered FUM
;
branch-cut
;
Engineering
;
Engineering General
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Mathematics
,
Technology
Notes:
The whole turbulent flow field around a two-dimensional aerofoil is solved with a consistent numerical method on a single-grid system and with an intermittency implemented two-equation model, namely the k-∊-γ turbulence model in elliptic form. In order to solve the numerical instability problem arising from the branch-cut in C-type grids using the non-staggered finite-volume method, a new numerical technique is proposed to guarantee the correct velocity-pressure coupling along the branch-cut. The computational results are compared with those by the standard k-∊ model and experimental data. This study demonstrates the relative simplicity of the present C-type single grid system, and the capability is assessed of the k-∊-γ equations for predicting turbulent flows consisting of both wall-free and wall-bounded regions.
Additional Material:
10 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cnm.1640111102
