کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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520413 | 867717 | 2013 | 17 صفحه PDF | دانلود رایگان |
An anisotropic refinement criterion suitable for Finite-Volume methods is presented and Navier–Stokes solutions are reported for the lid-driven cavity flow configuration at Re=1000Re=1000 with adaptive anisotropic meshes (h-refinement). The a posteriori error estimation criterion is based on the assessment of the goodness-of-fit of the least squares regression used to perform the variables profile reconstruction and it is capable of detecting both large-scale and small-scale flow phenomena. The criterion allowed to capture in detail the large-scale flow structure and also the sequence of creeping flow small sharp corner’s [1] eddies, up to the fourth corner vortex in addition to the primary cavity vortex. The smallest corner vortex detected is O(10-16)O(10-16) smaller in velocity magnitude compared with the cavity primary recirculation flow.
Journal: Journal of Computational Physics - Volume 243, 15 June 2013, Pages 365–381