کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10356621 867802 2012 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of condition number on preconditioning for low Mach number flows
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Effects of condition number on preconditioning for low Mach number flows
چکیده انگلیسی
The effects of the condition number on convergence characteristics and solution quality for the preconditioned Navier-Stokes equations are studied. A general approach to the construction of preconditioning parameters is proposed to account for the effects of the condition number on these parameters. To verify this technique, laminar flows past a circular cylinder at Reynolds numbers of 20 and 40, and laminar flows past a NACA0012 airfoil at Reynolds numbers of 2500 and 5000 are solved. It is shown that the condition number has effects on the convergence characteristics and solution qualities, and also that a condition number exists that optimizes the convergence characteristics and solution quality.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Physics - Volume 231, Issue 10, 20 May 2012, Pages 4001-4014
نویسندگان
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