船舶力学
船舶力學
선박역학
JOURNAL OF SHIP MECHANICS
2015年
5期
493-500
,共8页
邓辉%张志宏%刘巨斌%顾建农
鄧輝%張誌宏%劉巨斌%顧建農
산휘%장지굉%류거빈%고건농
浅水%超临界航速%舰船%水压场%有限差分法%傅里叶积分变换法
淺水%超臨界航速%艦船%水壓場%有限差分法%傅裏葉積分變換法
천수%초림계항속%함선%수압장%유한차분법%부리협적분변환법
shallow water%supercritical speed%ship%hydrodynamic pressure field%finite difference method%Fourier integral transform method
文章基于浅水波动势流理论和薄船假定,建立了浅水超临界航速舰船水压场理论模型。采用有限差分方法,对不同宽度航道下浅水超临界航速舰船水压场进行了数值计算。分析了航道岸壁、水深佛鲁德数、色散效应对舰船水压场的影响。通过与傅里叶积分变换法以及实验结果进行比对,表明了所建立的舰船水压场理论模型与计算方法吻合得较好。
文章基于淺水波動勢流理論和薄船假定,建立瞭淺水超臨界航速艦船水壓場理論模型。採用有限差分方法,對不同寬度航道下淺水超臨界航速艦船水壓場進行瞭數值計算。分析瞭航道岸壁、水深彿魯德數、色散效應對艦船水壓場的影響。通過與傅裏葉積分變換法以及實驗結果進行比對,錶明瞭所建立的艦船水壓場理論模型與計算方法吻閤得較好。
문장기우천수파동세류이론화박선가정,건립료천수초림계항속함선수압장이론모형。채용유한차분방법,대불동관도항도하천수초림계항속함선수압장진행료수치계산。분석료항도안벽、수심불로덕수、색산효응대함선수압장적영향。통과여부리협적분변환법이급실험결과진행비대,표명료소건립적함선수압장이론모형여계산방법문합득교호。
A mathematical model for pressure field caused by ship moving at supercritical speed in shallow water was established, based on the shallow water wave potential flow theory and slender ship assumption. The pressure field caused by ship moving at supercritical speed in shallow water was calculated by using the finite difference method. The effects of channel wall, depth Froude number and dispersion characteris-tics on the ship hydrodynamic pressure field were analyzed. The computed results were compared with the ones of Fourier integral transform method and experiment. The mathematical model and the calculation method were validated have a good agreement.