کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
655513 1457644 2012 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Superiority of PANS compared to LES in predicting a rudimentary landing gear flow with affordable meshes
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Superiority of PANS compared to LES in predicting a rudimentary landing gear flow with affordable meshes
چکیده انگلیسی

Results of simulations of the flow around a rudimentary landing gear are presented in the paper. A newly proposed improved Partially-Averaged Navier–Stokes (PANS) method using k − ε − ζ − f turbulence model is used for prediction of the flow. The results are compared with the experimental data but also with the results of two LES simulations performed using the PANS computational grids. PANS simulations predicted the flow in good agreement with the experimental data. LES predicted a non-physical creation of separation over the front wheels that does not exist in the PANS prediction and was not observed in the experimental oil film. PANS simulations showed low sensitivity to the grid refinement. They show clear advantage compared with the LES simulations when the computational grid is inadequate for resolution of the near-wall flow structures.


► Flow around a landing gear was predicted using Partially-Averaged Navies–Stokes.
► A newly proposed PANS k − epsilon − zeta − f model was used.
► Comparison of the PANS results with the experimental data showed good agreement.
► PANS simulations show advantage compared to LES with coarse computational grids.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Fluid Flow - Volume 37, October 2012, Pages 109–122
نویسندگان
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