Large Eddy Simulation of A Smooth Circular Cylinder Oscillating Normal to A Uniform Flow  

Oleh:

Holdo, Arne E. ; Tutar, Mustafa

Jenis: Article from Bulletin/Magazine
Dalam koleksi: Journal of Fluids Engineering vol. 122 no. 4 (2000), page 694-702.
Topik: large eddy simulation; large eddy simulation; smooth circular; cylinder; oscillating; uniform flow

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ89.2 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Results of a numerical evaluation of transitional flow around a circular cylinder forced to oscillate in a direction normal to a uniform flow are presented. The cylinder is considered to be a representative of a single riser exposed to a steady current. Numerical simulations were carried out using the LES method in 2 - D and 3 - D with a near - wall approach that was developed without using a "law of the wall" for a finite element code (FEM). The 3 - D simulations were compared with the 2 - D results and experimental data in order to assess the relative performance of the 3 - D LES simulations. The results show that 3 - D LES gives more realistic flow field predictions and can further remove overconservatism in the prediction of hydrodynamic force coefficients.

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