CAJ | 학술논문

为求解三体船兴波问题,基于线性自由面条件的势流兴波理论Rankine源方法,利用物理平面与计算平面的转换关系计算自由面上物理量的导数,开发了三体船兴波阻力预报程序.采用该方法和程序,对不同侧体布局的Wigley三体船兴波阻力及波形进行计算,并将计算结果与模型试验结果、其他作者数值计算结果进行比较,验证了该方法对三体船的适用性,表明采用贴水线网格及自由面区域变换法解三体船兴波问题可提高三体船兴波问题求解效率.
위구해삼체선흥파문제,기우선성자유면조건적세류흥파이론Rankine원방법,이용물리평면여계산평면적전환관계계산자유면상물리량적도수,개발료삼체선흥파조력예보정서.채용해방법화정서,대불동측체포국적Wigley삼체선흥파조력급파형진행계산,병장계산결과여모형시험결과、기타작자수치계산결과진행비교,험증료해방법대삼체선적괄용성,표명채용첩수선망격급자유면구역변환법해삼체선흥파문제가제고삼체선흥파문제구해효솔.
In order to solve the trimaran wave making problem, a program to calculate the trimaran wave making resistance has been developed. It is based on the Rankine source potential theory with the linear free-surface condition and utilizes the relationship between the physical domain and the computational domain to calculate the derivatives. By using present method and code, the wave making resistance and wave cut of the Wigley hull trimaran with several different side-hull positions were calculated. Then the numerical results were compared with the experimental data and the results calculated by other authors to validate present method. It indicated that it can save time to calculate the trimaran wave making resistance by using body fitted free-surface mesh and to calculate the derivatives with calculation domain transformation method.