Abstract

The aim of this paper is to perform a hydrodynamic analysis of the fluid flow around a symmetrical 3D hydrofoil on the physical laboratory model HM133 and to show the formation of the boundary layer and the separation point on the observed body. The analysis is performed in such a way that the geometric body within the measuring section of the physical model HM133 rotates around its vertical axis due to the fluid flow (water), resulting in a various potential view in front of and behind the observed body. The investigations were carried out in Hydrotechnical Laboratory Practicum at the Faculty of Civil Engineering, University of Rijeka. The paper covers the field of real fluid dynamics, which includes a description of laminar and turbulent flow on a plane surface and the formation of a boundary layer and separation point on the observed geometric body. In this segment, both the boundary layer and its properties have been analyzed in detail. The hydrodynamic analyses based on the tested submodels of hydrofoil of the physical model HM133 were validated and verified with the Computational Fluid Dynamics (CFD). This is based on the development of commercial numerical models in the computer program ANSYS Fluent 2020R1.

中文翻译：

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对称水翼周围流体流动的水动力分析

摘要

本文的目的是在物理实验室模型 HM133 上对对称 3D 水翼周围的流体流动进行流体动力学分析，并显示边界层的形成和观察体上的分离点。分析是这样进行的，即物理模型 HM133 测量截面内的几何体由于流体流动（水）而绕其垂直轴旋转，从而导致被观察体前后的各种潜在视图。调查是在里耶卡大学土木工程学院的水利技术实验室实习中进行的。论文涵盖真实流体动力学领域，其中包括对平面上的层流和湍流的描述，以及观察到的几何体上边界层和分离点的形成。在这一段中，边界层及其特性都已详细分析。基于物理模型 HM133 的水翼子模型测试的流体动力学分析通过计算流体动力学 (CFD) 进行了验证和验证。这是基于计算机程序 ANSYS Fluent 2020R1 中商业数值模型的开发。