On the development of noise-producing large-scale wavelike eddies in a plane turbulent jet

Author:

Merkine Lee-Or,Liu J. T. C.

Abstract

In this paper we study the development of large-scale wavelike eddies in a two-dimensional turbulent jet, extending earlier work on the mixing region (Liu 1974). The basic mean flow develops from one of mixing-region type with an initially specified boundary-layer thickness into a fully developed jet. This study brings out the role of the varicose and sinuous modes as they develop in a growing mean flow. In general, it is found that, for a given frequency parameter, the varicose mode has a shorter streamwise lifetime than the sinuous mode. For lower frequencies, the latter persists past the end of the potential core only to become subject to dissipation by the enhanced fine-scale turbulent activity in that region.

Publisher

Cambridge University Press (CUP)

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics

Reference28 articles.

1. Brown, G. & Roshko, A. 1972 Structure of the turbulent mixing layer. In Proc. 13th Int. Cong. Appl. Mech. Moscow (ed. E. Becker and G. K. Mikhailov).Springer.

2. Lighthill, M. J. 1962 Sound generated aerodynamically. (The Bakerian Lecture, 1961.) Proc. Roy. Soc. A267,147.

3. Oseberg, O. K. & Kline, S. J. 1971 The near field of a plane jet with several initial conditions.Stanford University Thermosci. Div. Rep. MD-28.

4. Kubota, T. & Dewey, C. F. 1964 Momentum integral methods for the laminar free shear layer.A.I.A.A. J. 2,625.

5. Kistler, A. L. & Chen, W. S. 1963 The fluctuating pressure field in a supersonic turbulent boundary layer.J. Fluid Mech. 16,41.

Cited by 31 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3