滑行艇不同漂角滑行状态下的水动力性能  

Analysis of hydrodynamic performance of planing ship at different drift angles

作　　者：李鑫[1] 王志东[1] 杨爽[1] 吴贺贺[1] 陈明明[1] 

机构地区：[1]江苏科技大学船舶与海洋工程学院,江苏镇江212003

出　　处：《舰船科学技术》2014年第1期16-21,26,共7页Ship Science and Technology

摘　　要：对于滑行艇的水动力性能研究通常都以船模试验来解决,但是滑行艇由于模型小,航速高,试验条件较为苛刻,这部分研究并不够充分。通过CFD方法能科学的模拟计算其航行情况,克服了试验的局限性,而且,在研究中将空气和水结合起来考虑,更符合实际情况,对进一步深入研究滑行艇水动力性能有重要意义。随着数值模拟技术的发展,用数值方法模拟滑行艇的运动状况来研究其运动性能,将成为具有重要意义的解决方案。本文以斜航试验为基础,建立7个不同漂角下的计算模型,并运用流体力学软件Fluent展开滑行艇在滑行状态下的数值模拟,对数值结果进行计算处理,并通过计算得到水动力系数测定曲线,为滑行艇水动力系数的数值测定提供一种摆脱实验条件限制的参考方法,对滑行艇水动力性能研究有一定的实际意义和参考价值。Research on hydrodynamic performance of planing ship still has many unsolved problems which are always sloved by ship model test. Test on planing ship is limited by experimental conditions because of the high speed of planing ship. Research in this field is not enough. So by the use of computational fluid dynamics, motions of planing ship can be scientifically simulated and calculated. Results are in accordance with the practice by combining air and water in the study. The method used in this paper has great significance for further study of hydrodynamic performance of planing ship. With the development of numerical simulation technology, the numerical simulation method will be more and more used in the research about motions of planing ship. Based on loxodromic towing test, computational models of different drift angles were established and numerical simulation was carried out using Fluent. Resistance performance of planing ship under different drift angles were compared and analyzed. Curves about testing the hydrodynamic coefficients were presented. The study supplied a reference approach for hydrodynamic coefficient test which could get rid of the limit of experiment condition and had great significance in the research of hydrodynamic performance of planing ship. This paper investigates applications of numerical simulation and software Fluent in the research of hydrodynamic force of 3 D planing ship which provides a reliable numerical model of the study of planing ship.

关 键 词：滑行艇 不同漂角 水动力特性 

分 类 号：U674.942[交通运输工程—船舶及航道工程]