Hydrodynamic coefficients for inclined cylinders

✍ Scribed by V. Sundar; V. Vengatesan; G. Anandkumar; A. Schlenkhoff

• Book ID: 104159259
• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 449 KB
• Volume: 25
• Category: Article
• ISSN: 0029-8018
• DOI: 10.1016/s0029-8018(97)00014-0

✦ Synopsis

The wave induced dynamic pressures around a circular cylinder of diameter 0.2 m due to regular waves were measured in a wave flume in a water depth of 1 m and in a wave basin in a water depth of 3 m. The experimental investigations were carried out with the cylinder inclined along and against the direction of wave propagation. The least-squares technique was employed to evaluate the coefficients of drag (C D ) and inertia (C M ) from the sectional force time histories obtained by integrating the measured circumferential pressure distribution. The variation of drag and inertia coefficients are presented as a function of Keulegan-Carpenter number (KC) for different inclinations of the cylinder. The comparison between the measured and the theoretical force derived from the evaluated hydrodynamic coefficients is found to be good.