四川兵工学报
四川兵工學報
사천병공학보
Journal of Sichuan Ordnance
2015年
10期
15-17,31
,共4页
外飘砰击%Dytran%流固耦合%压力分布
外飄砰擊%Dytran%流固耦閤%壓力分佈
외표팽격%Dytran%류고우합%압력분포
flare impact%Dytran%fluid-structure coupling%pressure distribution
基于有限体积法的数值仿真方法对三维船舶艏部的砰击问题进行了研究，建立包含空气、水和船舶艏部的完全耦合三维有限元模型，流体域用 Euler 单元模拟，结构部分用 Lagrange 单元模拟，采用一般耦合算法，分析了船舶艏部外飘砰击压力在船舷侧位置的分布情况；结果表明：数值仿真计算方法可以合理计算船舶艏部的外飘砰击问题，为船舶艏部线型的设计优化提供参考基础。
基于有限體積法的數值倣真方法對三維船舶艏部的砰擊問題進行瞭研究，建立包含空氣、水和船舶艏部的完全耦閤三維有限元模型，流體域用 Euler 單元模擬，結構部分用 Lagrange 單元模擬，採用一般耦閤算法，分析瞭船舶艏部外飄砰擊壓力在船舷側位置的分佈情況；結果錶明：數值倣真計算方法可以閤理計算船舶艏部的外飄砰擊問題，為船舶艏部線型的設計優化提供參攷基礎。
기우유한체적법적수치방진방법대삼유선박수부적팽격문제진행료연구，건립포함공기、수화선박수부적완전우합삼유유한원모형，류체역용 Euler 단원모의，결구부분용 Lagrange 단원모의，채용일반우합산법，분석료선박수부외표팽격압력재선현측위치적분포정황；결과표명：수치방진계산방법가이합리계산선박수부적외표팽격문제，위선박수부선형적설계우화제공삼고기출。
The slamming problem of 3D ship bow was studied by means of the finite volume method based on the numerical simulation method. A three-dimension coupling finite element model including air,water and hull was built up. The fluid-structure interaction was simulated using general coupling algorithm and the fluid was treated on a fix mess by using an Euler formulation and the structure on a deformable mesh by using a Lagrangian formulation. The space distribution of flare impact pressure on the side region was ana-lyzed. The results show that numerical simulation method could calculate the flare impacting problem of ship bow reliably. The result of this paper could provide the reference base for the design and optimization of the bow.
