Direct Numerical Simulation of Laminar Boundary-Layer Separation and Separation Control on the Suction Side of an Airfoil at Low Reynolds Number Conditions

2010 ◽  
Author(s):  
Wolfgang Balzer ◽  
Hermann Fasel
Keyword(s):  
Numerical Simulation ◽  
Boundary Layer ◽  
Reynolds Number ◽  
Direct Numerical Simulation ◽  
Laminar Boundary Layer ◽  
Low Reynolds Number ◽  
Suction Side ◽  
Boundary Layer Separation ◽  
Separation Control ◽  
Layer Separation

scholarly journals Turbulent boundary layer separation control using plasma actuator at Reynolds number 2000000

2016 ◽  
Vol 29 (5) ◽  
pp. 1237-1246 ◽  
Author(s):  
Xin Zhang ◽  
Yong Huang ◽  
Xunnian Wang ◽  
Wanbo Wang ◽  
Kun Tang ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Reynolds Number ◽  
Turbulent Boundary Layer ◽  
Boundary Layer Separation ◽  
Plasma Actuator ◽  
Separation Control ◽  
Layer Separation

scholarly journals Low Reynolds number k-ε modeling by using the direct numerical simulation (DNS) data

2008 ◽  
pp. 48-65
Keyword(s):  
Numerical Simulation ◽  
Boundary Layer ◽  
Reynolds Number ◽  
Direct Numerical Simulation ◽  
Boundary Layer Flow ◽  
Low Reynolds Number ◽  
Reynolds Numbers ◽  
Damping Function ◽  
Layer Flow ◽  
Near Wall

The constant C and the near-wall damping function f in the eddyviscosityrelation of the k-ε model are evaluated from direct numerical simulation (DNS) data for developed channel and boundary-layer flow, eachat two Reynolds numbers. Various existing

scholarly journals Viscous effects on the position of cavitation separation from smooth bodies

1975 ◽  
Vol 68 (4) ◽  
pp. 779-799 ◽  
Author(s):  
Vijay H. Arakeri
Keyword(s):  
Boundary Layer ◽  
Reynolds Number ◽  
Laminar Boundary Layer ◽  
Boundary Layer Separation ◽  
Empirical Method ◽  
Viscous Effects ◽  
Number Range ◽  
Layer Separation ◽  
Smooth Body ◽  
Semi Empirical

Flow visualization by the schlieren technique in the neighbourhood of a fully developed cavity on two axisymmetric headforms has shown the existence of laminar boundary-layer separation upstream of cavitation separation, and the distance between the two separations to be strongly dependent on Reynolds number. Based on present results, a semi-empirical method is developed to predict the position of cavitation separation on a smooth body. The method applies only in the Reynolds-number range when the cavitating body possesses laminar boundary-layer separation under non-cavitating conditions. Calculated positions of cavitation separation on a sphere by the method show good agreement with experimentally observed positions.

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