毕业论文移动版

摘   要中国幅员辽阔，拥有众多的内陆湖泊与河流，在这些风浪小的水域中翼滑艇因为拥有快速这一特性将更有优势。经试验研究表明，翼滑艇和主尺度相近的船舶相比较时，翼滑艇在相同的航行速度下所受阻力下降5%~15%。因此，高速翼滑艇水动力特性研究将对我国的船舶行业的进步，达到世界先进水平有着重要作用。84113

本文对总长11。8m翼滑艇进行数值模拟，来分析研究其瞬态水动力特性。首先在满足《规范》要求的前提下，确定其模型参数，然后通过CFD软件建模，最后通过FINE/Marine软件计算，根据不同航速来分析研究。

本文采用Maxsurf软件进行三维建模，导入到Fine/Marine软件通常按艇的体积傅汝德数Fr▽来划分艇的运动状态：Fr▽<1。0，排水航行状态；1。0< Fr▽<3。0，过渡航行状态；Fr▽>3。0，滑行状态。本文分别选取船速为8m/s、9m/s、10m/s三个工况下开展翼滑艇运动响应的数值预报进行网格划分。本文分别计算航速V=8m/s、9m/s、10m/s的工况。通过Fine/Marine软件数值模拟翼滑艇的实时航行状态，给出了不同体积傅汝德数下翼滑艇升沉量、垂荡速度、纵摇加速度和纵倾角随时间的变化曲线，初始重心位置坐标为x=4。998，y=0，z=0。634。其难点主要在CFD软件的学习和应用方面。

关键词：翼滑艇；瞬态水动力计算；FINE/Marine软件；

Abstract

China is a large country, and have many inland lakes and rivers, and in the waters of the these waves small wing rowing for rapid this feature will have more advantages。 By the experimental study shows that wing rowing and principal dimensions, in comparison with the ships of similar wing smooth sailing boat in the same speed by resistance by 5% ~ 15%。 Therefore, high-speed wing rowing hydrodynamic characteristic research to the progress of our country's shipping industry, reached the world advanced level plays an important role。

In this paper, the total length of 11。8 m wing rowing to carry on the numerical simulation, to study the transient hydrodynamic characteristics。 First of all, on the premise of meet the requirements of the specification, determine the model parameters, then through CFD software modeling, at last, through FINE/Marine software calculation, analysis according to different speeds。

This article USES the Maxsurf software for 3 d modeling, imported into Fine/Marine software usually according to the volume of a boat froude number Fr ▽ piding boat motion: Fr▽ < 1。0, the drainage of navigation status; Sailing Fr▽ < 1。0, drainage condition; 1。0 < Fr ▽< 3。0, sailing transition state; Fr▽ > 3。0, the sliding state。 This paper select speed is 8 m/s, 9 m/s, 10 m/s three working conditions to carry out the wing rowing motion response of numerical prediction for meshing。 This paper calculate speed V = 8 m/s, 9 m/s, the operation condition of the 10 m/s。 Wing rowing through Fine/Marine software numerical simulation of real-time navigation condition, different volume froude number is given under the wing rowing heave quantity, heaving speed and pitch acceleration and trim Angle changing with time curve, the initial focus position coordinates of x = 4。998, y = 0, z = 0。634。 The main difficulties in study and application of CFD software。

Keywords: GHC; The transient hydrodynamic calculation; FINE/Marine software;

目 录

第一章 绪论 1

1。1前言 1

1。2高速船的历史 3

1。3国内外研究现状 4

第二章CFD数值模拟及分析 9

2。1引言 (责任编辑：qin)