scholarly journals INNER STRUCTURE OF OBLIQUE UPWARD FLOW IN ONE-SIDED COMPOUND OPEN CHANNEL FLOW AT LOW REYNOLDS NUMBER

2011 ◽  
Vol 67 (2) ◽  
pp. 41-53
Author(s):  
Katsutoshi WATANABE ◽  
Takuji MORIYAMA ◽  
Takanori SAGA
Keyword(s):  
Reynolds Number ◽  
Channel Flow ◽  
Open Channel ◽  
Low Reynolds Number ◽  
Open Channel Flow ◽  
Upward Flow ◽  
Low Reynolds

Low Reynolds Number Effect on Open Channel Flow Over a Rib

2014 ◽  
Author(s):  
Ebenezer E. Essel ◽  
Kathryn Atamanchuk ◽  
Samuel d’Auteuil ◽  
Mark F. Tachie
Keyword(s):  
Reynolds Number ◽  
Channel Flow ◽  
Open Channel ◽  
Low Reynolds Number ◽  
Open Channel Flow ◽  
Recirculation Region ◽  
Particle Image Velocimetry Technique ◽  
Mean Velocity ◽  
Freestream Velocity ◽  
Low Reynolds

An experimental study was conducted to investigate low Reynolds number effects on open channel flow over a transverse square rib. Particle image velocimetry technique was used to perform detailed velocity measurement in the upstream and recirculation region of a square rib of height, h = 12 mm. The Reynolds number based on the freestream velocity and rib height, Reh = 1510, 2650 and 3950 and the ratio of the boundary layer thickness to step height, δ/h = 2.5 ± 0.2. The results showed that the reattachment length of Reh = 2650 and 3950 increased by 5.7% compared with corresponding value of Reh = 1510. The mean velocities were independent of Reynolds number in the recirculation region but at the reattachment point, Reh = 3650 reduced the streamwise mean velocity and enhanced the wall-normal mean velocity in the region adjacent to the wall. The turbulent kinetic energy beyond the center of the recirculation region increased with increasing Reynolds number.

scholarly journals Turbulent channel flow of generalized Newtonian fluids at a low Reynolds number

2020 ◽  
Vol 908 ◽  
Author(s):  
Arturo A. Arosemena ◽  
Helge I. Andersson ◽  
Jannike Solsvik
Keyword(s):  
Reynolds Number ◽  
Channel Flow ◽  
Low Reynolds Number ◽  
Turbulent Channel Flow ◽  
Newtonian Fluids ◽  
Generalized Newtonian Fluids ◽  
Low Reynolds

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