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潜艇近海底运动水动力数值计算分析研究(英文) 被引量:22

Investigation of Hydrodynamic Characteristics of Submarine Moving Close to the Sea Bottom with CFD Methods
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摘要 本文以SUBOFF潜艇模型为研究对象,利用FLUENT6.1软件,数值模拟了无限水域下的变攻角水动力特性曲线,与泰勒水池的模型试验结果比较分析表明,数值模拟具有较好的精度。本文用FLUENT6.1软件进一步计算分析了SUBOFF潜艇模型带攻角、带漂角、不同近底距离直航状态下的水动力特性,结果表明:无论有无攻角和漂角存在,潜艇运动(除阻力外)的五个水动力分量随近底距离的变化与“近底距离倒数平方”呈良好的线性关系,例如,ZH∝1H2,或Z'灼∝灼2。 The motion of a submarine near the sea bottom was paid much attention in the past few years.The RANS-based CFD methods are used to investigate the hydrodynamic characteristics of the DARPA SUBOFF model (DTRC model 5470) moving near a level bottom in this paper.It is concluded that the bottom effects on the submarine hydrodynamics can be expressed in the linear formulae of the bottom clearance parameterζ^2=(D/H)^2,i.e.,the bottom effects are rather proportional to the square of the inverse of the clearance H,The numerical study in this paper shows that the RANS-based CFD methods can be used as a practical tool to predict the hydrodynamic forces of a maneuvering submarine at considerable high accuracy.
出处 《船舶力学》 EI 北大核心 2005年第3期19-28,共10页 Journal of Ship Mechanics
关键词 潜艇操纵性 近海底运动 水动力 数值模拟 submarine maneuverability numerical simulation motion-near-bottom effect hydrodynamics
作者简介 吴宝山(1968-),男,中国船舶科学研究中心研究员; 邢福(1972-),男,硕士,中国船舶科学研究中心工程师; 匡晓峰(1975-),男,硕士,中国船舶科学研究中心工程师; 缪泉明(1965-),男,中国船舶科学研究中心研究员。
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