本文選題：體積力法 + KCS船型　； 參考：《中國艦船研究》2016年04期

【摘要】：為高效、精確地求解船舶操縱水動力導(dǎo)數(shù),以全附體KCS型船模為研究對象,基于RANS方程及VOF模型,在star-ccm+平臺上采用體積力法模擬螺旋槳作用,計(jì)及自由面興波及航行姿態(tài)變化對船模水動力的影響,開展斜航、純艏搖、漂角和艏搖組合3種平面運(yùn)動機(jī)構(gòu)(Planar Motion Mechanism,PMM)運(yùn)動的數(shù)值模擬,將橫向力Y、艏搖力矩N、橫傾力矩K的數(shù)值模擬結(jié)果與試驗(yàn)結(jié)果進(jìn)行對比,并依照PMM試驗(yàn)的動力學(xué)方程,通過最小二乘法擬合和傅立葉積分,將數(shù)值模擬結(jié)果與試驗(yàn)結(jié)果的時歷曲線進(jìn)行分析處理,求得操縱水動力導(dǎo)數(shù)。研究結(jié)果表明:該方法用于數(shù)值模擬PMM運(yùn)動是可行的;求得的水動力導(dǎo)數(shù)中Y′vvv,N′vvv誤差略大,其余水動力導(dǎo)數(shù)誤差均在15%以內(nèi)。
[Abstract]:In order to solve the hydrodynamic derivative of ship maneuvering efficiently and accurately, taking the fully attached KCS model as the research object, based on the RANS equation and VOF model, the volume force method is used to simulate the propeller action on the star-ccm platform. Considering the influence of free surface and navigation attitude change on the hydrodynamics of ship model, the numerical simulation of plane motion mechanism (Planar Motion MechanismPMM) is carried out, which is composed of slanting, pure yaw, drift angle and yaw. The numerical simulation results of transverse force Y, yawing moment N and roll moment K are compared with the experimental results. According to the dynamic equation of PMM test, the method of least square fitting and Fourier integral are used. The time-history curves of the numerical simulation and the experimental results are analyzed and processed to obtain the hydrodynamic derivatives. The results show that the method is feasible for numerical simulation of PMM motion, and the error of the obtained hydrodynamic derivatives is slightly larger than that of the rest. The errors of the other hydrodynamic derivatives are within 15%.
【作者單位】： 海軍工程大學(xué)艦船工程系;
【基金】：水動力學(xué)重點(diǎn)基金資助項(xiàng)目(9140A14030712JB11044) 海軍工程大學(xué)自然科學(xué)基金資助項(xiàng)目(435517J4040)
【分類號】：U661.3

【參考文獻(xiàn)】

相關(guān)期刊論文 前5條

1 程捷;張志國;蔣奉兼;王先洲;馮大奎;;平面運(yùn)動機(jī)構(gòu)試驗(yàn)的數(shù)值模擬[J];水動力學(xué)研究與進(jìn)展A輯;2013年04期

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本文編號：1837298