Simulation of Unsteady Flows Using an Unstructured Navier-Stokes Solver on Moving and Stationary Grids

We apply an unsteady Reynolds-averaged Navier-Stokes (URANS) solver for unstructured grids to time-dependent problems on both moving and stationary grids. Example problems considered are relevant to active flow control and stability and control. Computational results are presented using the Spalart-Allmaras turbulence model and are compared to experimental data. The effect of grid and time-step refinement are examined.

[1]  Armando Vavalle,et al.  Aerodynamic considerations of blended wing body aircraft , 2004 .

[2]  P. Roe Approximate Riemann Solvers, Parameter Vectors, and Difference Schemes , 1997 .

[3]  Steven M. Klausmeyer,et al.  Data summary from the first AIAA Computational Fluid Dynamics Drag Prediction Workshop , 2003 .

[4]  William Jones GridEx - An Integrated Grid Generation Package for CFD , 2003 .

[5]  Dan D. Vicroy,et al.  Navier-Stokes Computations of Longitudinal Forces and Moments for a Blended Wing Body , 2004 .

[6]  Ronald D. Joslin,et al.  Flow and Noise Control: Review and Assessment of Future Directions , 2002 .

[7]  Veer N. Vatsa,et al.  HIGHER ORDER TEMPORAL SCHEMES WITH ERROR CONTROLLERS FOR UNSTEADY NAVIER-STOKES EQUATIONS , 2005 .

[8]  P. Spalart A One-Equation Turbulence Model for Aerodynamic Flows , 1992 .

[9]  Chung-Sheng Yao,et al.  Synthetic Jet Flow Field Database for CFD Validation , 2004 .

[10]  F. Menter Improved two-equation k-omega turbulence models for aerodynamic flows , 1992 .

[11]  Mikhail A. Nyukhtikov,et al.  OPTIMIZED DUAL-TIME STEPPING TECHNIQUE FOR TIME-ACCURATE NAVIER-STOKES CALCULATIONS , 2006 .

[12]  D. Darmofal,et al.  An implicit, exact dual adjoint solution method for turbulent flows on unstructured grids , 2004 .

[13]  L. Christopher,et al.  Efficiency and Accuracy of Time-Accurate Turbulent Navier-Stokes Computations , 1995 .

[14]  Edward N. Tinoco,et al.  Summary of Data from the Second AIAA CFD Drag Prediction Workshop (Invited) , 2004 .

[15]  W. K. Anderson,et al.  An implicit upwind algorithm for computing turbulent flows on unstructured grids , 1994 .