An Approximate Method for the Drags of Two-Dimensional Obstacles at Low Reynolds Numbers-Reference-Cited by-同舟云学术

An Approximate Method for the Drags of Two-Dimensional Obstacles at Low Reynolds Numbers

Published:1996-12-01 Issue:4 Volume:63 Page:990-996
ISSN:0021-8936
Container-title:Journal of Applied Mechanics
language:en
Short-container-title:

Author:

Yano Hideo¹,Hirata Katsuya¹,Komori Masanori²

Affiliation:

1. Department of Mechanical Engineering, Doshisha University, Koyoto 610-03, Japan

2. Appliance System Group, Sharp Corporation, Osaka 581, Japan

Abstract

We propose a new simple method of computing the drag coefficients of two-dimensional obstacles symmetrical to the main-flow axis at Reynolds numbers less than 100. The governing equations employed in this method are the modified Oseen’s linearized equation of motion and continuity equation, and the computation is based on a discrete singularity method. As examples, simple obstacles such as circular cylinders, rectangular prisms, and symmetrical Zhukovskii aerofoils are considered. And it was confirmed that the computed drags agree well with experimental values. Besides optimum shapes of these geometries, which minimize the drag coefficients, are also determined at each Reynolds number.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics

Link

http://asmedigitalcollection.asme.org/appliedmechanics/article-pdf/63/4/990/5465067/990_1.pdf

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