کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6928958 | 1449350 | 2018 | 28 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Numerical analysis of a high-order unstructured overset grid method for compressible LES of turbomachinery
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Numerical analysis of a high-order unstructured overset grid method for compressible LES of turbomachinery Numerical analysis of a high-order unstructured overset grid method for compressible LES of turbomachinery](/preview/png/6928958.png)
چکیده انگلیسی
Large-Eddy Simulation (LES) is recognized as a promising method for high-fidelity flow predictions in turbomachinery applications. The presented approach consists of the coupling of several instances of the same LES unstructured solver through an overset grid method. A high-order interpolation, implemented within this coupling method, is introduced and evaluated on several test cases. It is shown to be third order accurate, to preserve the accuracy of various second and third order convective schemes and to ensure the continuity of diffusive fluxes and subgrid scale tensors even in detrimental interface configurations. In this analysis, three types of spurious waves generated at the interface are identified. They are significantly reduced by the high-order interpolation at the interface. The latter having the same cost as the original lower order method, the high-order overset grid method appears as a promising alternative to be used in all the applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Physics - Volume 363, 15 June 2018, Pages 371-398
Journal: Journal of Computational Physics - Volume 363, 15 June 2018, Pages 371-398
نویسندگان
J. de Laborderie, F. Duchaine, L. Gicquel, O. Vermorel, G. Wang, S. Moreau,