Flow past a transversely oscillating square cylinder in free stream at low Reynolds numbers

2009 ◽  
Vol 61 (6) ◽  
pp. 658-682 ◽  
Author(s):  
A. P. Singh ◽  
A. K. De ◽  
V. K. Carpenter ◽  
V. Eswaran ◽  
K. Muralidhar
Keyword(s):  
Free Stream ◽  
Reynolds Numbers ◽  
Square Cylinder ◽  
Low Reynolds Numbers ◽  
Flow Past ◽  
Low Reynolds ◽  
Oscillating Square Cylinder

Flow past a square cylinder at low Reynolds numbers

2010 ◽  
Vol 67 (9) ◽  
pp. 1160-1174 ◽  
Author(s):  
Subhankar Sen ◽  
Sanjay Mittal ◽  
Gautam Biswas
Keyword(s):  
Reynolds Numbers ◽  
Square Cylinder ◽  
Low Reynolds Numbers ◽  
Flow Past ◽  
Low Reynolds

scholarly journals Erratum: “The effect of permeability on the flow past permeable disks at low Reynolds numbers” [Phys. Fluids 29, 097103 (2017)]

2020 ◽  
Vol 32 (11) ◽  
pp. 119901
Author(s):  
Cathal Cummins ◽  
Ignazio Maria Viola ◽  
Enrico Mastropaolo ◽  
Naomi Nakayama
Keyword(s):  
Reynolds Numbers ◽  
Low Reynolds Numbers ◽  
Flow Past ◽  
Low Reynolds

Implicit-LES Simulation of Variable-Speed Power Turbine Cascade for Low Free-Stream Turbulence Conditions

2018 ◽  
Author(s):  
Ali Ameri
Keyword(s):  
Free Stream ◽  
Reynolds Numbers ◽  
Scale Model ◽  
Variable Speed ◽  
Low Reynolds Numbers ◽  
Free Stream Turbulence ◽  
Pressure Loss Coefficient ◽  
Power Turbine ◽  
Actual Design ◽  
Low Reynolds

It is a challenge to simulate the flow in a Variable Speed Power Turbine (VSPT), or, for that matter, rear stages of low pressure turbines at low Reynolds numbers due to laminar flow separation or laminar/turbulent flow transition on the blades. At low Reynolds numbers, separation induced-transition is more prevalent which can result in efficiency lapse. LES has been used in recent years to simulate these types of flows with a good degree of success. In the present work, very low free stream turbulence flows at exit Reynolds number of 220k were simulated. The geometry was a cascade which was constructed with the midspan section of a VSPT design. Most LES simulations to date, have focused on the midspan region. As the endwall effect was significant in these simulations due to thick incoming boundary layer, full blade span computation was necessitated. Inlet flow angles representative of take-off and cruise conditions, dictated by the rotor speed in an actual design, were analyzed. This was done using a second order finite volume code and a high resolution grid. As is the case with Implicit-LES methods, no sub-grid scale model was used. Blade static pressure data, at various span locations, and downstream probe survey measurements of total pressure loss coefficient were used to verify the results. The comparisons showed good agreement between the simulations and the experimental data.

Heat transfer and drag for transverse flow past bundles of finned tubes at low reynolds numbers

1978 ◽  
Vol 14 (10) ◽  
pp. 905-907
Author(s):  
A. S. Lyshevskii ◽  
V. G. Sokolov ◽  
V. M. Sychev ◽  
L. Ya. Shkret
Keyword(s):  
Heat Transfer ◽  
Reynolds Numbers ◽  
Transverse Flow ◽  
Low Reynolds Numbers ◽  
Finned Tubes ◽  
Flow Past ◽  
Low Reynolds

scholarly journals The effect of permeability on the flow past permeable disks at low Reynolds numbers

2017 ◽  
Vol 29 (9) ◽  
pp. 097103 ◽  
Author(s):  
Cathal Cummins ◽  
Ignazio Maria Viola ◽  
Enrico Mastropaolo ◽  
Naomi Nakayama
Keyword(s):  
Reynolds Numbers ◽  
Low Reynolds Numbers ◽  
Flow Past ◽  
Low Reynolds
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