Experimental study of onset of laminar–turbulent transition in mixed convection in a vertical heated tube

2008 ◽  
Vol 51 (25-26) ◽  
pp. 5895-5905 ◽  
Author(s):  
A. Behzadmehr ◽  
A. Laneville ◽  
N. Galanis
Keyword(s):  
Experimental Study ◽  
Mixed Convection ◽  
Heated Tube ◽  
Turbulent Transition ◽  
Laminar Turbulent Transition

An experimental study of the influence of riblets on transition

1996 ◽  
Vol 315 ◽  
pp. 31-49 ◽  
Author(s):  
G. R. Grek ◽  
V. V. Kozlov ◽  
S. V. Titarenko
Keyword(s):  
Experimental Study ◽  
Three Dimensional ◽  
Negative Influence ◽  
Positive Influence ◽  
Linear Stage ◽  
Turbulent Transition ◽  
Transition Structures ◽  
Stage Transition ◽  
Tollmien Schlichting ◽  
Laminar Turbulent Transition

An experimental study of the effect of riblets on three-dimensional nonlinear structures, the so-called Λ-vortices on laminar-turbulent transition showed that riblets delay the transformation of the Λ-vortices into turbulent spots and shift the point of transition downstream. This result is opposite to the negative influence of such ribbed surfaces on two-dimensional linear Tollmien-Schlichting waves (the linear stage of transition). Thus, the ribbed surface influences laminar-turbulent transition structures differently: a negative influence on the linear-stage transition structures and a positive influence on the nonlinear-stage transition structures. It is demonstrated that transition control by means of riblets requires special attention to be paid to the choice of their location, taking into account the stage of transition.

scholarly journals Experimental study of the laminar-turbulent transition on models of wings with subsonic and supersonic leading edge at M = 2

2019 ◽  
Vol 1404 ◽  
pp. 012097 ◽  
Author(s):  
N V Semionov ◽  
Yu G Yermolaev ◽  
A D Kosinov ◽  
V L Kocharin ◽  
A V Panina ◽  
...  
Keyword(s):  
Experimental Study ◽  
Leading Edge ◽  
Turbulent Transition ◽  
Laminar Turbulent Transition

Experimental study of the influence of external disturbances on the position of the laminar-turbulent transition on swept wings at M = 2

2021 ◽  
Vol 28 (3) ◽  
pp. 319-325
Author(s):  
Yu. G. Ermolaev ◽  
A. D. Kosinov ◽  
V. L. Kocharin ◽  
A. N. Semenov ◽  
N. V. Semionov ◽  
...  
Keyword(s):  
Experimental Study ◽  
External Disturbances ◽  
Turbulent Transition ◽  
Swept Wings ◽  
Laminar Turbulent Transition

Experimental study of the effects of couple weak waves on laminar-turbulent transition on attachment-line of a swept cylinder

2016 ◽  
Author(s):  
Yu. G. Yermolaev ◽  
A. A. Yatskih ◽  
A. D. Kosinov ◽  
N. V. Semionov ◽  
G. L. Kolosov ◽  
...  
Keyword(s):  
Experimental Study ◽  
Turbulent Transition ◽  
Attachment Line ◽  
Laminar Turbulent Transition

Experimental study of the laminar-turbulent transition on a blunt cone

2014 ◽  
Vol 55 (3) ◽  
pp. 375-385 ◽  
Author(s):  
E. A. Aleksandrova ◽  
A. V. Novikov ◽  
S. V. Utyuzhnikov ◽  
A. V. Fedorov
Keyword(s):  
Experimental Study ◽  
Blunt Cone ◽  
Turbulent Transition ◽  
Laminar Turbulent Transition
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