کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
792733 | 902318 | 2007 | 11 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: An efficient reduced-order modelling approach based on fluid eigenmodes and boundary element method An efficient reduced-order modelling approach based on fluid eigenmodes and boundary element method](/preview/png/792733.png)
This paper presents an efficient reduced-order modelling approach based on the boundary element method. In this approach, the eigenvalue problem of the unsteady flows is defined based on the unknown wake singularities. By constructing this reduced-order model, the body quasi-static eigenmodes are removed from the eigensystem and it is possible to obtain satisfactory results without using the static correction technique when enough eigenmodes are used. In addition to the conventional method, eigenanalysis and reduced-order modelling of unsteady flows over a NACA 0012 airfoil, a wing with NACA 0012 section and a wing–body combination are performed using the proposed reduced order modelling (ROM) method. Numerical examples are presented that demonstrate the accuracy and computational efficiency of the present method.
Journal: Journal of Fluids and Structures - Volume 23, Issue 1, January 2007, Pages 143–153