无人船FLUENT阻力模拟与试验验证  

Numerical Simulation and Experimental Verification for the Resistance of an USV Using the FLUENT Software

作　　者：邵峰[1,2] 金久才[2,3] 张杰[2,3] 

机构地区：[1]青岛大学物理科学学院,山东青岛266071 [2]国家海洋局第一海洋研究所海洋物理与遥感研究室,山东青岛266061 [3]国家海洋局&中国航天科技集团公司海洋遥测工程技术研究中心,山东青岛266061

出　　处：《海洋技术》2014年第5期8-12,共5页Ocean Technology

基　　金：中央级公益性科研院所基本科研业务费专项资金资助项目(GY02-2012T05);国家自然科学基金资助项目(41076062)

摘　　要：无人船作为一种新型的海上观测平台,其航行阻力性能研究非常重要。针对无人船复杂的船体结构,提出一种基于FLUENT软件的无人船阻力数值模拟方法。使用标准k-ε湍流模型和VOF方法,分别对无人船浮体及其附属物进行周围粘性流场的数值模拟。在不同傅汝德数条件下,计算得到双体船浮体的粘性阻力系数,并与经验公式计算结果相比较,结果一致性较好。进一步考虑无人船的附属物阻力,计算了无人船总阻力,经与湖试试验值比较,吻合较好。研究结果证明了该方法用于无人船阻力计算的适用性。另外,结合仿真数据,还对无人船阻力主要来源作了简要分析,可为无人船结构优化设计提供参考。Unmanned Surface Vehicles （USVs） are new platforms for ocean observation, so it is very important to carry out the research on the navigating resistance of a USV. Aimed at the complex structure of a USV, this paper presents a numerical simulation method to calculate the USV resistance based on the FLUENT software. The viscous flow filed around the floats and their attachments of an USV is simulated using the standard k-ε model and VOF method. For different Froude numbers （Fr）, the viscous resistance coefficients of the twin-hull craft floats are derived from the Fluent and compared with the results from the empirical formula, obtaining good consistency. Considering the resistance of USV attachments, the total resistance of the USV is calculated and compared with the lake test results, which also proves consistent. Research results show that the method is applicable for calculating USV resistance. In addition, the main sources of the resistance are briefly analyzed using simulation data, which can serve as a reference for the optimized structural design of USVs.

关 键 词：FLUENT软件 数值模拟 阻力计算 无人船 

分 类 号：U661.1[交通运输工程—船舶及航道工程]