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華中科技大學學報(自然科學版) 2020, Vol. 48 Issue (10): 75-80 DOI10.13245/j.hust.201013

欄目:船舶與海洋工程
浮冰在Stokes波作用下運動響應研究
倪寶玉 a , 葉昱圖 b , 胡文進 a , 薛彥卓 a
a. 哈爾濱工程大學船舶工程學院,黑龍江 哈爾濱 150001
b. 上海交通大學船舶海洋與建筑工程學院,上海 200240
摘要 基于斜滑理論、水波理論和耐波性理論,提出了可以快速預報小塊浮冰在波浪作用下三自由度運動響應的計算方法;基于STAR-CCM+軟件,采用VOF造波功能,建立三維Stokes波浪水槽,研究單塊浮冰與Stokes波浪相互作用.計算結果與試驗結果基本符合,驗證了本文計算結果的有效性.基于此,研究了不同參數下浮冰運動響應幅值算子,包含波長、波高和冰厚等,并獲得不同參數的影響規律.結果表明:正方形薄冰三個自由度的響應幅值算子曲線均隨著相對波長的增加而逐漸趨近于1,而立方體浮冰的垂蕩運動響應幅值算子曲線在相對波長接近8~9時發生了共振現象;浮冰的縱向漂移速度明顯受到波高影響,與波高呈平方關系.
關鍵詞 浮冰 ;Stokes波 ;理論方法 ;數值波浪水槽 ;響應幅值算子
Study on motion response of ice floe under Stokes wave
NI Baoyu a , YE Yütu b , HU Wenjin a , XUE Yanzhuo a
a. College of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China
b. School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China
Abstract Based on the slope sliding theory,water wave theory and seakeeping theory,a method that could quickly predict the 3-degree-of-freedom (3DOF) motion response of small ice floe under wave action was presented.Based on STAR-CCM+ software and volume of fluid(VOF) wave-making function,a three-dimensional Stokes wave tank was established to study the interaction between a small ice floe and Stokes wave.The calculated results were generally in agreement with the experimental results,verifying the validity of the calculated results.On this basis,response amplitude operator (RAO) of the ice floe was studied under different parameters,including wavelength,wave height and ice thickness,and the influence law of different parameters was obtained.Results show that along with the increase of relative wave length,all the 3DOF RAO curves of a square thin ice approach to 1,while the heave RAO curve of a cubic ice resonates when relative wave length is around between 8 and 9.The longitudinal drift velocity of the ice is obviously affected by wave height with a quadratic relationship.
Keywords ice floe ; Stokes wave ; theoretical method ; numerical wave tank ; response amplitude operator
基金資助國家重點研發計劃資助項目(2017YFE0111400);國家自然科學基金資助項目(51979051,51979056,51639004);黑龍江省自然科學基金資助項目(A2018003)

中圖分類號O352
文獻標志碼A
文章編號1671-4512(2020)10-0075-06
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文獻來源
倪寶玉, 葉昱圖, 胡文進, 薛彥卓. 浮冰在Stokes波作用下運動響應研究[J]. 華中科技大學學報(自然科學版), 2020, 48(10): 75-80
DOI:10.13245/j.hust.201013
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