کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7051195 | 1457266 | 2016 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A velocity decomposition formulation for 2D steady incompressible lifting problems
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A velocity decomposition formulation for 2D steady incompressible lifting problems A velocity decomposition formulation for 2D steady incompressible lifting problems](/preview/png/7051195.png)
چکیده انگلیسی
The principle of velocity decomposition is used to efficiently and accurately solve the Navier-Stokes boundary-value problem for lifting flows. The velocity vector is decomposed as the sum of irrotational and vortical components. The irrotational component is represented using a velocity potential which satisfies the Laplace equation with a modified boundary condition that is written in terms of the Navier-Stokes solution. A viscous potential can be found which satisfies the Navier-Stokes problem directly outside of the rotational regions of the fluid such that the fluid domain over which the Navier-Stokes equations must be solved numerically can be greatly reduced. The viscous potential is used as a Dirichlet boundary condition for the total velocity on the boundaries of the reduced fluid domain. The velocity decomposition approach is used to solve for the flow over a 2D NACA0012 foil in both laminar and turbulent regimes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Mechanics - B/Fluids - Volume 58, JulyâAugust 2016, Pages 70-84
Journal: European Journal of Mechanics - B/Fluids - Volume 58, JulyâAugust 2016, Pages 70-84
نویسندگان
William J. Rosemurgy, Robert F. Beck, Kevin J. Maki,