Two-dimensional nonsteady viscous flow simulation on the Navier-Stokes Computer miniNode

1986 ◽  
Vol 1 (1) ◽  
pp. 53-73 ◽  
Author(s):  
Daniel M. Nosenchuck ◽  
Michael G. Littman ◽  
William Flannery
Keyword(s):  
Viscous Flow ◽  
Flow Simulation ◽  
Navier Stokes ◽  
Two Dimensional

Two-dimensional turbulent viscous flow simulation past airfoils at fixed incidence

1997 ◽  
Vol 26 (2) ◽  
pp. 135-162 ◽  
Author(s):  
E. Guilmineau ◽  
J. Piquet ◽  
P. Queutey
Keyword(s):  
Viscous Flow ◽  
Flow Simulation ◽  
Two Dimensional

scholarly journals Two-Dimensional Computational Model for Wave Rotor Flow Dynamics

1997 ◽  
Vol 119 (4) ◽  
pp. 978-985 ◽  
Author(s):  
G. E. Welch
Keyword(s):  
Stokes Equations ◽  
Flow Simulation ◽  
Navier Stokes ◽  
Two Dimensional ◽  
Wave Rotor ◽  
Navier Stokes Equations ◽  
Flow Features ◽  
Rotor Experiment ◽  
Two Dimensional Flow ◽  
Rotor Flow

A two-dimensional (θ, z) Navier–Stokes solver for multiport wave rotor flow simulation is described. The finite-volume forms of the unsteady thin-layer Navier–Stokes equations are integrated in time on multiblock grids that represent the stationary inlet and outlet ports and the moving rotor passages of the wave rotor. Computed results are compared with three-port wave rotor experimental data. The model is applied to predict the performance of a planned four-port wave rotor experiment. Two-dimensional flow features that reduce machine performance and influence rotor blade and duct wall thermal loads are identified.

scholarly journals Two-dimensional viscous flow simulation of a shock accelerated heavy gas cylinder

2011 ◽  
Vol 23 (2) ◽  
pp. 024102 ◽  
Author(s):  
Santhosh K. Shankar ◽  
Soshi Kawai ◽  
Sanjiva K. Lele
Keyword(s):  
Viscous Flow ◽  
Flow Simulation ◽  
Two Dimensional ◽  
Gas Cylinder ◽  
Heavy Gas

scholarly journals Optimal Strategy to Tackle a 2D Numerical Analysis of Non-Uniform Flow over Artificial Dune Regions: A Comparison with Bibliography Experimental Results

Water ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2331
Author(s):  
Jungkyu Ahn ◽  
Jaelyong Lee ◽  
Sung Won Park
Keyword(s):  
Open Channel ◽  
Roughness Length ◽  
Separation Zone ◽  
Flow Simulation ◽  
Turbulence Models ◽  
Navier Stokes ◽  
Two Dimensional ◽  
Sst Model ◽  
Bed Roughness ◽  
Channel Bottom

Flow simulation over a dune requires the proper input of roughness coefficients. This study analyzed a numerical simulation of open-channel turbulent flow over two-dimensional fixed dunes to reveal the effect of roughness on the dune bottom, and to determine the optimized combination of the turbulence scheme and the roughness height formula. The most appropriate roughness values and turbulence models were applied using Reynolds-averaged Navier–Stokes models. Seven methods were chosen to estimate the bed roughness properties at the inlet boundary section. The results of all cases calculated with the OpenFOAM toolbox were compared with laboratory experimental data for model validation. The performances of all bed roughness variations were evaluated according to the stream-wise and depth-wise directions with nondimensional values. Consequently, it was revealed that the combination of bottom roughness length scale at the inlet boundary and the k-ω shear-stress transport (SST) model was the most suitable for the flow separation zone and turbulent properties near the channel bottom.

scholarly journals Two-Dimensional Computational Model for Wave Rotor Flow Dynamics

1996 ◽  
Author(s):  
Gerard E. Welch
Keyword(s):  
Stokes Equations ◽  
Flow Simulation ◽  
Navier Stokes ◽  
Two Dimensional ◽  
Wave Rotor ◽  
Performance Impact ◽  
Flow Features ◽  
Rotor Experiment ◽  
Two Dimensional Flow ◽  
Rotor Flow

A two-dimensional (θ,z) Navier-Stokes solver for multi-port wave rotor flow simulation is described. The finite-volume form of the unsteady thin-layer Navier-Stokes equations arc integrated in time on multi-block grids that represent the stationary inlet and outlet ports and the moving rotor passages of the wave rotor. Computed results are compared with three-port wave rotor experimental data. The model is applied to predict the performance of a planned four-port wave rotor experiment. Two-dimensional flow features that reduce machine performance and influence rotor blade and duct wall thermal loads are identified. The performance impact of rounding the inlet port wall, to inhibit separation during passage gradual opening, is assessed.

scholarly journals Two-dimensional incompressible viscous flow around a thin obstacle tending to a curve

2009 ◽  
Vol 139 (6) ◽  
pp. 1237-1254 ◽  
Author(s):  
Christophe Lacave
Keyword(s):  
Viscous Fluid ◽  
Viscous Flow ◽  
Recent Work ◽  
Stokes Equations ◽  
Navier Stokes ◽  
Two Dimensional ◽  
Navier Stokes Equations ◽  
Incompressible Viscous Flow ◽  
Limit Solution ◽  
Thin Obstacle

Building on a recent work, we consider a two-dimensional viscous fluid in the exterior of a thin obstacle shrinking to a curve, proving convergence to a solution of the Navier–Stokes equations in the exterior of a curve. The uniqueness of the limit solution is also shown.>

Sign in / Sign up

Export Citation Format

Share Document