基于CFD方法的LNGFSRU船浅水效应分析

Shallow Water Effect Analysis of LNG FSRU Carrier Based on CFD Calculation Method

为了保证大型LNG FSRU船在浅水区航行的安全,采用水动力计算方法分析大型LNG FSRU船在浅水区域航行时,船体周围水流分布、船体阻力、船舶下蹲及艏艉纵倾变化的规律,与模型试验相比,CFD方法具有时间短、成本低的优势;与经验公式法相比,CFD方法充分考虑船舶线型对流场的影响,更为合理。

To ensure the safe navigation of large LNG FSRU in shallow water area,the CFD calculation method is applied to assess the water flow distribution,ship resistance variation,ship squat and ship trim variation around the hull of LNG FSRU when navigation in shallow water area. Comparing with the model test method,the CFD calculation method spends less time and cost.While comparing with the empirical formula method,the CFD calculation method is more reasonable because of fully considering the hull line effect to the flow distribution around the vessel.