WAKE MODEL OF HYDRODYNAMIC-FORCES ON PIPELINES

被引：28

作者：

LAMBRAKOS, KF

CHAO, JC

BECKMANN, H

BRANNON, HR

机构：

[1] Exxon Production Research Co,, Houston, TX, USA, Exxon Production Research Co, Houston, TX, USA

来源：

OCEAN ENGINEERING | 1987年 / 14卷 / 02期

关键词：

DATA PROCESSING - Data Reduction and Analysis - FLOW OF FLUIDS - Wakes;

D O I：

10.1016/0029-8018(87)90073-4

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

The hydrodynamic force model presented for pipelines includes flow history effects (wake effects) and time dependence in the force coefficients. These two features in the model were necessary to obtain satisfactory agreement between model predictions and full scale field measurements of pipeline forces. Conventional force models which represent adaptations of Morison's equation with ambient velocity and constant coefficients give predictions which for the lift component of the force in particular are in very poor agreement with the measurements. The parameters in the new model have been estimated on the basis of the full scale measurements and reflect a wide range of flow conditions. The model can be used in pipeline on-bottom stability design calculations for regular or irregular waves.

引用

页码：117 / 136

页数：20