The hydrodynamic pressures induced by regular waves around the circumference of a pipeline normal to the wave direction and near a rigid bed of slope 1:10 have been investigated in a wave flume. The pressures were integrated to obtain the force time history, from which the peak horizontal and vertical forces are evaluated. The maximum and root mean square horizontal and transverse force coefficients are correlated with the Keulegan-Carpenter (KC) number (dimensionless number representing the relation between convective, locally varied and local, varied in time acceleration). The effect of the distance between the sloping bed and the pipeline on the force coefficients is discussed. The force coefficients are found to decrease with an increase in KC number and with the decrease in the relative clearance of the pipeline from the boundary. In addition, the reflection characteristics of the sloping bed in the presence of the pipeline as a function of surf similarity parameter and their comparison with the results from existing literature are also reported. The details of the model setup, experimental procedure, results and discussion are presented in this paper.


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    Title :

    Regular wave pressures and forces on submerged pipelines near a sloping boundary


    Additional title:

    Regelmäßige Wellendrücke und Wellenkräfte auf unterseeische Rohrleitungen nahe einer Steigung


    Contributors:

    Published in:

    Ocean Engineering ; 31 , 17-18 ; 2295-2317


    Publication date :

    2004


    Size :

    23 Seiten, 14 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    PROBABILITY DISTRIBUTION OF WAVE FORCES ON PIPELINES NEAR A SLOPING BOUNDARY PARALLEL AND NORMAL TO WAVE DIRECTION

    Sundar, V. / Roopsekhar, K. A. P. / Schlurmann, T. et al. | British Library Online Contents | 2004


    Regular water wave measurements near submerged breakwaters

    Taveira Pinto, Francisco | Tema Archive | 2005


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    Kazily, Mohamed Fadhil Al- | TIBKAT | 1972


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    Großbritannien, Offshore Energy Technology Board | TIBKAT | 1982


    Wave forces on submerged cylinders

    Gran, Sverre | TIBKAT | 1973