Experimental and numerical investigation of drag force over tubular frustum

被引：3

作者：

Abrebekooh, Y. Niknafs ^{[1
]}

Rad, M. ^{[2
]}

机构：

[1] Islamic Azad Univ, Sch Mech Engn, S Tehran Branch, Tehran, Iran

[2] Sharif Univ Technol, Dept Mech Engn, Sch Mech Engn, Tehran, Iran

来源：

SCIENTIA IRANICA | 2011年 / 18卷 / 05期

关键词：

Drag coefficient; Underwater body; Axisymmetric; Towing tank measurements; CFD; Drag reduction; TURBULENCE;

D O I：

10.1016/j.scient.2011.08.027

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

There are different ways in order to achieve higher velocity in underwater vehicles. One of these methods is using a body with special form. This paper presents a towing tank based experimental study on drag forces for different Reynolds Numbers of a special underwater model. This paper investigates drag force and drag coefficient in a different flow direction over the model. Obtained experimental results in towing tank are explained. Computational Fluid Dynamic (CFD) simulation also is performed using commercial CFD software package FLUENT 6.3.26. There is a significant decrease in drag coefficient of model moving with small diameter at upstream. (C) 2011 Sharif University of Technology. Production and hosting by Elsevier B. V. All rights reserved.

引用

页码：1133 / 1137

页数：5

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