CAJ | 학술논문

本文根据一种已提出的水下拖曳体三维水动力数学模型，利用FORTRAN语言重新编制计算程序，并通过与FLUENT软件对接实现水下拖曳系统六自由度的动态模拟。在该数学模型中，脐带缆的控制方程采用Ablow and Schechter模型，拖曳体的水动力状态由Gertler and Hargen六自由度运动方程来描述，拖曳体所受的水动力通过FLUENT软件求解N-S方程得到。计算结果表明：迫沉水翼、垂直尾翼控制都能比较灵活地控制水下拖曳体，这表明本文的数学模型和所采用的模拟方法能够比较准确地模拟出整个拖曳系统在拖曳过程中的动力响应状态。本文所提出的数值分析方法可以为水下拖曳体的研发和改进提供一种前期设计准备的数值手段。
본문근거일충이제출적수하타예체삼유수동력수학모형，이용FORTRAN어언중신편제계산정서，병통과여FLUENT연건대접실현수하타예계통륙자유도적동태모의。재해수학모형중，제대람적공제방정채용Ablow and Schechter모형，타예체적수동력상태유Gertler and Hargen륙자유도운동방정래묘술，타예체소수적수동력통과FLUENT연건구해N-S방정득도。계산결과표명：박침수익、수직미익공제도능비교령활지공제수하타예체，저표명본문적수학모형화소채용적모의방법능구비교준학지모의출정개타예계통재타예과정중적동력향응상태。본문소제출적수치분석방법가이위수하타예체적연발화개진제공일충전기설계준비적수치수단。
In this paper,according an underwater towed vehicle 3D hydrodynamic mathematical model,and using FORTRAN language to program,and through docking FLUNT software to come true six-degrees-freedom dynamic simulation of underwater towed system.In the mathematical model.Ablow and Schechter model is used to the control equation of cable,and drag hydrodynamic state body is described by Gertler and Hargen six degree of freedom motion equation.In this study, the hydrodynamic were obtained by FLUENT software for solving N-S equation . The results indicate that:depressing airfoil, vertical airfoil control can lfexibly control the underwater towed vehicle, which indicates that the simulation method and the mathematical model can accurately simulate the state of motion response of the whole towed system during the towing . Numerical analysis method proposed in this paper can be used for the development of underwater towed vehicle and provides a numerical method for preliminary design .