摘要
叙述了计算船舶非线性兴波阻力的一种方法，采用面元法满足完全非线性边条的势流场．特点是采用三角形单元，源面自自由面上置和自湿水面下潜，每次迭代均适应新的波面重新作网格划分，所采用的迭代方式未发生不收敛问题，只需少数迭代次数即达到收敛．对Ｔｏｄｄ６０系列Ｃｂ＝０．６～０．７５及不同Ｌ／Ｂ，Ｂ／Ｔ作了计算，所得计算结果与试验值符合。
A method for predicting non linear ship wave making resistance is presented in this article. Panel method is used to calculate the steady flow satisfying fully non linear free surface boundary condition. The distinguishing feature is the use of triangular panel, source singularities raised above the free surface and submerged underneath the wetted surface. A new network is adopted according to the new wave surface at every iteration. Only a few iterations are required to reach convergence and divergence has not occured adopting this way of iteratiton. Series Todd 60 with C b=0.6￣0.75 are calculated and the results are found very satisfactory compared with the experiment.
出处
《武汉交通科技大学学报》
1996年第5期519-526,共8页
Journal of Wuhan University of Technology(Transportation Science & Engineering)
基金
国家自然科学基金
关键词
非线性
兴波阻力
数值计算
船舶
non linear
wave making resistance
numerical method
