Advanced Fluid Research On Drag reduction In Turbulence Experiments -AFRODITE

被引：7

作者：

Fransson, J. H. M. ^{[1
]}

Fallenius, B. E. G. ^{[1
]}

Shahinfar, S. ^{[1
]}

Sattarzadeh, S. S. ^{[1
]}

Talamelli, A. ^{[1
]}

机构：

[1] KTH Mech, Linne Flow Ctr, SE-10044 Stockholm, Sweden

来源：

13TH EUROPEAN TURBULENCE CONFERENCE (ETC13): INSTABILITY, TRANSITION, GRID TURBULENCE AND JETS | 2011年 / 318卷

关键词：

TOLLMIEN-SCHLICHTING WAVES; BOUNDARY-LAYER; DISTURBANCE GROWTH; SHALLOW BUMP; TRANSITION; STREAKS; STABILIZATION; INSTABILITY; STABILITY; BREAKDOWN;

D O I：

10.1088/1742-6596/318/3/032007

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A hot topic in today's debate on global warming is drag reduction in aeronautics. The most beneficial concept for drag reduction is to maintain the major portion of the airfoil laminar. Estimations show that the potential drag reduction can be as much as 15%, which would give a significant reduction of NOx and CO emissions in the atmosphere considering that the number of aircraft take offs, only in the EU, is over 19 million per year. An important element for successful flow control, which can lead to a reduced aerodynamic drag, is enhanced physical understanding of the transition to turbulence process.

引用

页数：6

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