海底管线表面压力分布的理论分析

A thoretical analysis of pressure distribution along the surface of submarine pipeline

为了获取海底管线表面压力变化特征,基于固体边界层基本方程,利用摄动方法推导了管线表面压力分布解析式,并利用物理模型试验数据对理论公式进行了检验。经对公式系数做出适当调整,压力系数的计算公式能反映出边界层分离点前后的分布规律。

A theoretical analysis of pressure distribution along the surface of submarine pipeline was made in this paper. Based on basic equations of boundary layer, a perturbation method was used to deduce an analytic formula of pressure distribution along the surface of submarine pipeline. Experimental data were used to verify the analytic formula and the calculation formula of pressure coefficient along the surface of submarine pipeline can reflect the pressure distribution before and after the separation point of boundary layer through comparative analysis and suitable adjustment of the coefficient in the calculation formula.