...
首页> 外文期刊>Ocean Engineering >Performance analysis of 3D hydrofoil under free surface
【24h】

Performance analysis of 3D hydrofoil under free surface

机译:自由表面下的3D水翼性能分析

获取原文
获取原文并翻译 | 示例
           

摘要

The purpose of the present paper is to develop a potential-based panel method for determining the steady potential flow about three-dimensional hydrofoil under free surface. The method uses constant-strength doublets and source density distribution over the foil body surface and thereby Dirichlet-type boundary condition is used instead of Neumann-type condition. On the undisturbed free surface source density is used to meet the free surface condition that is linearised in terms of double-body model approach and is discretised by a one-side, upstream, four-point finite difference operator. After solving the doublets on the foil and sources on the free surface, the numerical results of pressure, lift and resistance coefficients and also wave profiles can then be calculated for different Froude number and depth of submergence to demonstrate the influence of free surface and aspect ratio effects on performance of the hydrofoil.
机译:本文的目的是开发一种基于势能的面板方法,用于确定自由表面下三维水翼的稳定势能流。该方法使用恒定强度的双峰态和箔体表面上的源密度分布,从而使用Dirichlet型边界条件代替Neumann型条件。在不受扰动的自由表面上,源密度用于满足自由表面条件,该条件根据双体模型方法进行了线性化,并由一侧,上游,四点有限差分算子离散化。解决了箔片上的二重峰和自由表面上的源之后,可以计算出不同弗洛德数和浸没深度的压力,升力和阻力系数以及波动曲线的数值结果,以证明自由表面和纵横比的影响对水翼性能的影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号