Minimum-Turbulence-Level wind tunnel at KTH

Authors: Fransson, J. H. M., Johansson, A.V.J., Alfredsson, P.H.
Document Type: Article
Pubstate: Published
Journal: The Japan Society of Fluid Mechanics, NAGARE
Volume: 33   253-258
Year: 2014


This paper gives a short background and description of the Minimum-Turbulence-Level (MTL) wind tunnel at KTH. It describes the philosophy behind the design of the various flow components of the tunnel and also gives essential flow-quality data. The MTL wind tunnel has a very good flow stability, very low turbulence and acoustic disturbance levels, which makes it ideal for stability and transition research. In addition the design with a long test section gives opportunities for studies of turbulent boundary layers at high Reynolds number. Included is also a list of ten representative papers from the tunnel that show a diversity of groundbreaking flow research carried out in the MTL wind tunnel.