Experimental Investigation of Spanwise-Equidistant Spinning Disks for Control of Crossflow-Dominated Laminar-Turbulent Transition

2022 ◽  
Author(s):  
Hans P. Barth ◽  
Stefan Hein
Keyword(s):  
Experimental Investigation ◽  
Turbulent Transition ◽  
Laminar Turbulent Transition

On Methods of Experimental Investigation of the Laminar-Turbulent Transition at Transonic Velocities

1997 ◽  
Vol 32 (6) ◽  
pp. 793-797 ◽  
Author(s):  
V. I. Biryukov ◽  
V. D. Bokser ◽  
V. G. Mikeladze ◽  
G. K. Shapovalov
Keyword(s):  
Experimental Investigation ◽  
Turbulent Transition ◽  
Laminar Turbulent Transition

scholarly journals The flow structure of submerged round jets at low Re numbers

2019 ◽  
Vol 196 ◽  
pp. 00046
Author(s):  
Vadim Lemanov ◽  
Konstantin Sharov ◽  
Vitaly Matyunin
Keyword(s):  
Experimental Investigation ◽  
Transition Zone ◽  
Initial Conditions ◽  
Longitudinal Velocity ◽  
Cylindrical Tube ◽  
Reynolds Numbers ◽  
Submerged Jet ◽  
Round Jets ◽  
Turbulent Transition ◽  
Laminar Turbulent Transition

An experimental investigation of a laminar-turbulent transition in a round jet flowing from a cylindrical tube with a diameter of 3.2 mm have been carried out. The range of Reynolds numbers in the experiments Re = Ud / v were of 700-12000. The measurements have been carried out via the PIV system. The profiles of average velocities and their pulsations in the laminar-turbulent transition zone have been obtained, as well as axial distributions of the longitudinal velocity and longitudinal velocity pulsations. Based on a comparison with the data of other authors, the effect of the initial conditions on the laminar-turbulent transition in a submerged jet has been shown.

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