Detail Computational Evaluation of The Periodic Performance of A NACA 0012 Fitted With A Gurney Flap   Oleh:  Date, James C. ; Turnock, Stephen R. Jenis: Article from Bulletin/Magazine Dalam koleksi: Journal of Fluids Engineering vol. 124 no. 1 (2002), page 227-234. Topik: evaluation; computational evaluation; periodic performance; gurney flap Ketersediaan Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ89.4 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada     Lihat Detail Induk Isi artikel A detailed computational investigation into the periodic two - dimensional performance of a NACA 0012 section fitted with 2 and 4 percent h / c Gurney flaps operating at a Reynolds number of 0.85 × 10(6) is presented. The aim of the work was to determine the suitability of the incompressible Reynolds - averaged Navier - Stokes (RANS) formulation in modeling the vortex shedding experienced by lifting sections with blunt, sharp edged features. In particular, whether under - converged steady state calculations could be used for section design performance evaluation in place of the computationally intensive time accurate flow simulations. Steady, periodic, and time - averaged two - dimensional lift and drag coefficients, as well as vortex shedding frequency, were predicted and compared with the available experimental data. Reasonable agreement was found, once sufficiently fine grids had been generated, and the correct time step determined for the time accurate simulations. Opini Anda Klik untuk menuliskan opini Anda tentang koleksi ini! Kembali

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