کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
762864 896714 2010 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A computational study of vortex–airfoil interaction using high-order finite difference methods
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
A computational study of vortex–airfoil interaction using high-order finite difference methods
چکیده انگلیسی

Simulations of the interaction between a vortex and a NACA0012 airfoil are performed with a stable, high-order accurate (in space and time), multi-block finite difference solver for the compressible Navier–Stokes equations.We begin by computing a benchmark test case to validate the code. Next, the flow with steady inflow conditions are computed on several different grids. The resolution of the boundary layer as well as the amount of the artificial dissipation is studied to establish the necessary resolution requirements. We propose an accuracy test based on the weak imposition of the boundary conditions that does not require a grid refinement.Finally, we compute the vortex–airfoil interaction and calculate the lift and drag coefficients. It is shown that the viscous terms add the effect of detailed small scale structures to the lift and drag coefficients.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Fluids - Volume 39, Issue 8, September 2010, Pages 1267–1274
نویسندگان
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