Laminar-turbulent transition prediction in the presence of surface imperfections. (1st January 2014)

• Record Type: Journal Article
• Authors: Perraud, Jean; Arnal, Daniel; Kuehn, Winfried
• Is Part Of: International journal of engineering systems modelling and simulation. Volume 6:Number 3/4(2014)
• Page Start: 162
• Page End: 170
• Publication Date: 2014-01-01
• Subjects: laminar-turbulent transition -- surface imperfections -- laminar flow -- system modelling and simulation; Engineering systems -- Computer simulation -- Periodicals; Engineering systems -- Mathematical models -- Periodicals; 620.0042
• Languages: English
• ISSNs: 1755-9758

Abstract

Renewed interest in practical laminar flow control has motivated a number of European research activities in these last years. Laminar wings design now includes the question of laminar flow 'resistance' to small surface deformations and accidents in surface quality, for which prediction tools are needed. This paper presents several models developed for predicting the impact of surface deformations on laminarity. Comparisons to large Reynolds number experiments are also included.