Partially-Averaged Navier-Stokes Simulation of the Flow Around Circular Cylinder at Re=3900: Comparison of Low and High Reynolds Number Approaches

2020 ◽  
Author(s):  
T. Korinek ◽  
T. Tisovsky ◽  
J. Hujer ◽  
K. Zimmerman
Keyword(s):  
Reynolds Number ◽  
Circular Cylinder ◽  
High Reynolds Number ◽  
Navier Stokes ◽  
Flow Around Circular Cylinder ◽  
High Reynolds

Turbulence simulations of flow past a circular cylinder based on a nonlinear partially averaged Navier–Stokes (PANS) method

2015 ◽  
Vol 29 (25) ◽  
pp. 1550143 ◽  
Author(s):  
Haiyan Bie ◽  
Jintao Liu ◽  
Zongrui Hao ◽  
Yulin Wu
Keyword(s):  
Reynolds Number ◽  
Circular Cylinder ◽  
High Reynolds Number ◽  
Navier Stokes ◽  
Normal Velocity ◽  
Turbulence Flow ◽  
Flow Past ◽  
Energy Formula ◽  
Simulation Results ◽  
High Reynolds

A nonlinear partially averaged Navier–Stokes (PANS) method based on RNG [Formula: see text]–[Formula: see text] turbulence model is evaluated by a moderately high Reynolds number turbulence flow past a circular cylinder. The ratios of unresolved-to-total kinetic energy [Formula: see text] and unresolved-to-total dissipation [Formula: see text] for PANS method are sensitive to the simulation result. Simulation results based on different [Formula: see text] are compared with the experimental data. The quantities including mean streamline velocity, mean normal velocity, streamlines, etc. are analyzed. The computational result is reasonable when [Formula: see text] is less than 0.6. The PANS method can be used in the simulation of high Reynolds number turbulence flow.

Transient Simulation of Flow Past Smooth Circular Cylinder at very High Reynolds Number Using OpenFOAM

2014 ◽  
Vol 592-594 ◽  
pp. 1972-1977 ◽  
Author(s):  
Sangamesh M. Hosur ◽  
D.K. Ramesha ◽  
Suman Basu
Keyword(s):  
Reynolds Number ◽  
Circular Cylinder ◽  
Open Source ◽  
High Reynolds Number ◽  
Numerical Data ◽  
Flow Past ◽  
Computational Fluid Dynamics Cfd ◽  
High Reynolds ◽  
Set Up ◽  
Free Open Source

Flow past a smooth circular cylinder at high Reynolds number (Re=3.6 x 106) which covers the upper-transition regime has been investigated numerically by using Open source Field Operation and Manipulation (OpenFOAM) package. OpenFOAM is a free, open source Computational Fluid Dynamics (CFD) software package. The numerical model has been set up as two dimensional (2D), transient, incompressible and turbulent flow. A standard high Reynolds number k-ε turbulence model is included to evaluate the turbulence. The objective of the present work is to set up the case using pimpleFoam solver which is an Unsteady Reynolds Averaged Simulations (URANS) model and to evaluate the model for its conformance with available literature and experiments. The results obtained are compared with experimental and numerical data.

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