The Modeling of Hub Vortex for Numerical Analysis of Marine Propeller Using a Simple Surface Panel Method “ SQCM ”
The Modeling of Hub Vortex for Numerical Analysis of Marine Propeller Using a Simple Surface Panel Method “ SQCM ”
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使用简单曲面面板方法“SQCM”对船用螺旋桨数值分析的轮毂涡进行建模
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
K. Nakatake
中科院分区：
文献类型：
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作者：
T. Kanemaru;Tomohiro Ryu;A. Yoshitake;J. Ando;K. Nakatake
本文提出了一种用于数值分析的带有轮毂涡的轮毂模型。我们使用我们原来的面元方法“SQCM”，并将以前的SQCM修改为新的模式与轮毂涡。在SQCM中，Hess和Smith型源面板分布在螺旋桨叶片和轮毂表面上。根据Lan的QCM模型，在曲面上分布离散涡。该方法将桨毂视为桨叶的一部分，将升力面末端从桨叶根部延伸到螺旋桨中心线。首先，描述计算方法。其次，给出了轮毂表面流动、轮毂压力分布和轮毂尾迹的合理计算结果。此外，为了测量桨毂盖阻力，我们进行了螺旋桨开桨试验，分别测量了桨叶和桨毂盖的推力和扭矩。最后，将计算的轮毂帽阻力与实验结果进行了比较，并进行了讨论。
This paper presents a modeling of hub with hub vortex for numerical analysis. We use our original surface panel method “SQCM” and modify previous SQCM to new model with hub vortex. In SQCM, Hess and Smith type source panels are distributed on the propeller blades and hub surface. And discretized vortices are distributed on the camber surfaces according to Lan’s QCM. In this method, we regard the hub as the part of blade and extend the end of lifting surface from the root of blade to the center line of propeller. First, the calculation method is described. Next, reasonable calculated results about hub surface flow, hub pressure distribution and hub wake are presented. Moreover, we conduct propeller open test which measures the thrust and torque of blades and boss cap separately in order to measure the boss cap drag. Finally, the comparison between calculated boss cap drag and experimental one is shown and discussions are made.