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首页> 外文期刊>Journal of Coastal Research: An International Forum for the Littoral Sciences >Hydrodynamic Performance of Ichthyoid Rudder at Different Rudder Angle Settings
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Hydrodynamic Performance of Ichthyoid Rudder at Different Rudder Angle Settings

机译：鱼鳞舵在不同舵角设置下的水动力性能

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摘要

This paper presents the first calculation of the open-water hydrodynamic performance of ordinary and ichthyoid rudders in a viscous flow field using the computational fluid dynamics method as well as an investigation of the lift and resistance coefficients of the two rudders. First, an ichthyoid rudder was formed by adjusting the shape of an ordinary rudder to mimic the shape of a fish tail. Subsequently, open-water tests of ordinary and ichthyoid rudders were conducted, and the maneuverability of the two rudders was compared at different rudder angle settings. The results of the theoretical calculations show that the ichthyoid rudder has obvious advantages over the ordinary rudder in improving the lift coefficient and postponing the stall phenomenon at greater critical rudder angles. This paper also presents calculations of the force and moment of the two rudders at different rudder angle settings and compares the results of these calculations. By comparing the wake fields of the two rudders at different rudder angle settings, our study provides a theoretical basis for the improved ship maneuverability observed with the ichthyoid rudder.
机译：本文介绍了使用计算流体力学方法对粘性流场中普通和鱼鳞舵的敞开水动力性能的首次计算，并研究了两个舵的升力和阻力系数。首先，通过调节普通舵的形状以模仿鱼尾的形状来形成鱼叉形舵。随后，进行了普通舵和鱼鳞舵的开水试验，并比较了在不同舵角设置下两个舵的可操纵性。理论计算结果表明，鱼鳞舵在提高升力系数和在较大的临界舵角处推迟失速现象方面具有明显优于普通舵的优势。本文还介绍了在不同舵角设置下两个舵的力和力矩的计算，并比较了这些计算的结果。通过比较两个舵在不同舵角设置下的尾流场，我们的研究为鱼叉式舵的改进的船舶操纵性提供了理论基础。

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