görtler vortices
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scholarly journals Investigation of the influence of narrowing annular channel and Reynolds number on formation of Tayler-Gortler vortexes

2021 ◽  
Vol 2039 (1) ◽  
pp. 012025
Author(s):  
E V Pankratov
Keyword(s):  
Reynolds Number ◽  
Swirling Flow ◽  
Outer Cylinder ◽  
Cone Angle ◽  
Annular Channel ◽  
Reynolds Numbers ◽  
Görtler Vortices ◽  
First Case ◽  
Constant Diameter ◽  
Secondary Vortices

Abstract Abstract. The article investigates the Taylor-Gortler vortices arising in a swirling flow when the annular channel narrows. Several options for the geometry of the narrowed annular channel are researched. In the first case, the outer cylinder with a constant diameter and the inner cone with a variable cone angle are considered. In the second case, on the contrary an inner cylinder with a constant diameter and an outer cone with a variable cone angle are considered. All geometries were tested at different Reynolds numbers Re. = 8.3-103…21•103. As a result, the analysis of the propagation of secondary vortices along the length of the annular channel is presented.

Control of Unsteady Görtler Instability Modes by Steady Görtler Vortices

2021 ◽  
pp. 227-232
Author(s):  
D. A. Mischenko ◽  
V. I. Borodulin ◽  
A. V. Ivanov ◽  
Y. S. Kachanov
Keyword(s):  
Görtler Vortices ◽  
Instability Modes ◽  
Gortler Vortices
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