船模摩擦阻力的一种测试方法及结果

A Testing Method and Results of Friction Resistance of Ship Model

通过在循环水槽中进行不同条件下的船模微气泡减阻试验 ,及对试验结果进行了必要的处理 ,得到了试验平均摩擦阻力系数图 ;同时通过理论计算得出了理论平均摩擦阻力系数图 .对以上两组数据图的比较确定出试验过程中的模型设计及采用的试验方法是可行的 ,从而提出了一种船模摩擦阻力的试验模型结构及测试方法 .试验结果表明 :船模兴波阻力和形状阻力对所测数据的影响很小 ,在船舶试验模型底部喷射微气泡对摩擦阻力减少有很好的效果 .

The chart of experimental average friction resistance of coefficient is achieved through experiment of microbubble reducing resistance of ship model at different conditions in circulating water flume and necessary processing of experimental results and the chart about theoretic average friction resistance of coefficient is achieved according to the results of theoretic calculating. By comparing the two charts above, it gets the conclusion that the model designing and experimental method are feasible. Furthermore, a kind of experimental model structure on friction resistance of ship model is brought forward. The experimental results indicate that wave resistance and shape resistance have little influence on the tested data and ejecting microbubble on the bottom of ship model will lead to decreasing of the friction resistance.