An Experimental and Numerical Investigation of Drag Reduction Through Biomimetic Modelling

被引：0

作者：

Manz, Andreas ^{[1
]}

Monir, Shafiul ^{[1
]}

Jones, Martyn ^{[1
]}

机构：

[1] Glyndwr Univ, Sch Appl Sci Comp & Engn, Mold Rd, Wrexham LL11 2AW, Wales

来源：

PROCEEDINGS OF THE 2017 7TH INTERNATIONAL CONFERENCE INTERNET TECHNOLOGIES AND APPLICATIONS (ITA) | 2017年

关键词：

Non-smooth surface; bionic; drag reduction; CFD; SURFACES; FLOW; OPTIMIZATION; RIBLETS;

D O I：

暂无

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

This paper characterises flow around a circular cylinder and investigates the potential of a non-smooth surface to reduce air resistance in a Reynolds number range between Re-d = 8.09.10(4) and Re-d = 2.02.10(5). The two- and three-dimensional numerical simulations were performed using a steady-state solution and the Reynolds-averaged Navier-Stokes (RANS) approaches. Three different mesh designs and four turbulence models with various treatments were assessed and compared against experimental data. A total of 26 uneven preparations in the two-dimensional analysis and two riblet structures in the three-dimensional analysis were designed to investigate the effect of drag reduction. The results reported hold the potential of uneven structures to reduce the air resistance in the case of a circular cylinder. This research further demonstrates that engineering applications can benefit from mimicking nature's details and functions.

引用

页码：198 / 203

页数：6

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