论文信息 - ROOT MEAN SQUARE FORCE COEFFICIENTS FOR SUBMARINE PIPELINES

ROOT MEAN SQUARE FORCE COEFFICIENTS FOR SUBMARINE PIPELINES

Abstract An experimental investigation has been carried out on forces induced by regular and random waves on submarine pipelines placed near a plane boundary. The inline and transverse forces are analysed in terms of combined root mean square (rms) hydrodynamic coefficient. The total rms coefficient is correlated with Keulegan-Carpenter number or period parameter and relative clearance of the pipeline from the plane boundary. The pipeline was subjected to Pierson-Moskowitz spectrum (P-M spectrum) in the random wave force tests. The time histories of water particle kinematics are generated using the linear numerical transforms. This paper also reports the effect of depth parameter on the total rms coefficient. The results of the random wave force tests are finally compared with those of regular waves.

N. Jothi Shankar | Hin-Fatt Cheong | K. Subbiah

[1] D. J. Maull,et al. Sinusoidal flow past a circular cylinder , 1978 .

[2] Peter W. Bearman,et al. THE LOADING ON A CYLINDER IN POST-CRITICAL FLOW BENEATH PERIODIC AND RANDOM WAVES , 1985 .

[3] Subrata K. Chakrabarti. Hydrodynamic Coefficients and Depth Parameter , 1985 .

[4] K. Subbiah,et al. Wave forces on submarine pipelines near a plane boundary , 1987 .

[5] John H. Nath,et al. WAVE FORCES ON CYLINDERS NEAR PLANE BOUNDARY , 1973 .

[6] Turgut Sarpkaya,et al. Periodic flow about bluff bodies. Part 1: Forces on cylinders and spheres in a sinusoidally oscillating fluid , 1974 .

[7] Peter Stansby,et al. Quasi‐2‐D Forces on a Vertical Cylinder in Waves , 1983 .

[8] John H. Nath,et al. Forces from Fluid Flow around Objects , 1974 .

[9] Tokuo Yamamoto,et al. Wave Forces on Cylinders near Plane Boundaries , 1979 .

[10] Turgut Sarpkaya,et al. In - Line And Transverse Forces, On Cylinders In Oscillatory Flow At High Reynolds Numbers. , 1977 .

[11] John M. Niedzwecki,et al. Horizontal and vertical cylinders in waves , 1982 .