A Cartesian grid method with improvement of resolving the boundary layer structure for two‐dimensional incompressible flows

2021 ◽  
Author(s):  
Xin Tong ◽  
Lipo Wang ◽  
Jinqiang Chen ◽  
Hua Ouyang
Keyword(s):  
Boundary Layer ◽  
Incompressible Flows ◽  
Layer Structure ◽  
Grid Method ◽  
Cartesian Grid ◽  
Two Dimensional ◽  
Boundary Layer Structure ◽  
Cartesian Grid Method

scholarly journals Influence of two-dimensional roughness element on boundary layer structure in the favourable pressure gradient region of the swept wing

2019 ◽  
Vol 234 (1) ◽  
pp. 20-27
Author(s):  
Stepan Tolkachev ◽  
Victor Kozlov ◽  
Valeriya Kaprilevskaya
Keyword(s):  
Boundary Layer ◽  
Pressure Gradient ◽  
Layer Structure ◽  
Roughness Element ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Frequency Range ◽  
Swept Wing ◽  
Boundary Layer Structure ◽  
Roughness Elements

In this article, the results of research about stationary and secondary disturbances development behind the localized and two-dimensional roughness elements are presented. It is shown that the two-dimensional roughness element has a destabilizing effect on the disturbances induced by the three-dimensional roughness element lying upstream. In this case, the two-dimensional roughness element causes the appearance of stationary structures, and then secondary perturbations, whose frequency range lies lower than in the case of the stationary vortices excited by a three-dimensional roughness element.

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