滑行艇阻力初步估算方法的比较分析

Comparative Analysis of Preliminary Estimation Methods for Planning Boat Resistance

针对单体滑行艇的阻力预报问题,整理前人估算游艇阻力的方法并对滑行艇的阻力进行初步估算。为探究这些方法的准确性,选用一艘26尺的游艇作为算例,基于计算流体力学(CFD)理论,运用XFlow软件计算在湍流状态下该滑行艇所受到的阻力。对比各方法的计算结果,最终确定了估算滑行艇阻力比较准确的方法。研究结果表明,大隅三彦经验公式以及大隅三彦制动马力图谱法估算滑行艇阻力的结果是比较可靠的。对以后滑行艇阻力的初步估算具有借鉴和指导作用。

Aiming at the resistance prediction of single planning boat, the methods that estimate yacht resistance by predecessors are summarized, which are used to estimate the resistance of the planning craft. In order to study the accuracy of these empirical formulas, the 26＇ yacht is chose as an example. Based on CFD, the XFlow software is used to calculate the resistance of the yacht under turbulent state. The calculating results are compared with other methods, and the relative accurate methods to estimate the resistance of planing craft are finally obtained. The results show that the Mitsuhiko OSUMI＇s empirical formula and the brake horsepower map method to estimate the resistance of planning craft are reliable. It is the reference and the guide for the preliminary estimation of the resistance of the planning boat.