A flux reconstruction solver for unsteady incompressible viscous flow using artificial compressibility with implicit dual time stepping

2016 ◽  
Author(s):  
Christopher Cox ◽  
Chunlei Liang ◽  
Michael W. Plesniak
Keyword(s):  
Viscous Flow ◽  
Flux Reconstruction ◽  
Artificial Compressibility ◽  
Time Stepping ◽  
Incompressible Viscous Flow ◽  
Dual Time Stepping

Numerical Solution of Incompressible Unsteady Flows in Turbomachinery

2000 ◽  
Vol 123 (3) ◽  
pp. 680-685 ◽  
Author(s):  
L. He ◽  
K. Sato
Keyword(s):  
Stokes Equations ◽  
Three Dimensional ◽  
Unsteady Flows ◽  
Navier Stokes ◽  
Time Step ◽  
Navier Stokes Equations ◽  
Flow Solver ◽  
Time Stepping ◽  
Incompressible Viscous Flow ◽  
Dual Time Stepping

A three-dimensional incompressible viscous flow solver of the thin-layer Navier-Stokes equations was developed for the unsteady turbomachinery flow computations. The solution algorithm for the unsteady flows combines the dual time stepping technique with the artificial compressibility approach for solving the incompressible unsteady flow governing equations. For time accurate calculations, subiterations are introduced by marching the equations in the pseudo-time to fully recover the incompressible continuity equation at each real time step, accelerated with a multi-grid technique. Computations of test cases show satisfactory agreements with corresponding theoretical and experimental results, demonstrating the validity and applicability of the present method to unsteady incompressible turbomachinery flows.

Investigation of the Unsteady Flow for the Supersonic Jet Element

2011 ◽  
Vol 201-203 ◽  
pp. 2178-2181 ◽  
Author(s):  
Yong Xu ◽  
Guo Qing Zhang ◽  
Fei Wang
Keyword(s):  
Unsteady Flow ◽  
Viscous Flow ◽  
Supersonic Jet ◽  
Unsteady Flows ◽  
Time Stepping ◽  
Dual Time Stepping ◽  
Unsteady Viscous Flow ◽  
Thrust Fluctuation

The unsteady viscous flow of the supersonic jet element (SJE) was simulated numerically based on CFD technology. A dual time-stepping scheme and AMG scheme were employed to solve the unsteady flows in SJE, and the reasons of thrust fluctuation during the wall-attachment state of SJE are found out. Based on the pressure cloud and streamlines, the vortices generated by the unsteady flow on attached wall had also been investigated and drawn some conclusions.

Improvements to a dual-time-stepping method for computating unsteady flows

AIAA Journal ◽  
1997 ◽  
Vol 35 ◽  
pp. 1548-1550 ◽  
Author(s):  
S. DeRango ◽  
D. W. Zingg
Keyword(s):  
Unsteady Flows ◽  
Time Stepping ◽  
Dual Time Stepping

Numerical methods for incompressible viscous flow

2002 ◽  
Vol 25 (8-12) ◽  
pp. 1125-1146 ◽  
Author(s):  
Hans Petter Langtangen ◽  
Kent-Andre Mardal ◽  
Ragnar Winther
Keyword(s):  
Numerical Methods ◽  
Viscous Flow ◽  
Incompressible Viscous Flow

scholarly journals Skeleton-stabilized immersogeometric analysis for incompressible viscous flow problems

2019 ◽  
Vol 344 ◽  
pp. 421-450 ◽  
Author(s):  
Tuong Hoang ◽  
Clemens V. Verhoosel ◽  
Chao-Zhong Qin ◽  
Ferdinando Auricchio ◽  
Alessandro Reali ◽  
...  
Keyword(s):  
Viscous Flow ◽  
Flow Problems ◽  
Incompressible Viscous Flow
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