Large eddy simulation of a smooth circular cylinder oscillating normal to a uniform flow
JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, cilt.122, sa.4, ss.694-702, 2000 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 122 Sayı: 4
- Basım Tarihi: 2000
- Doi Numarası: 10.1115/1.1287270
- Dergi Adı: JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.694-702
- Ankara Üniversitesi Adresli: Hayır
Özet
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 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.