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CFD Analysis Process

Glenn Research Center CFD Analysis Process 1. CFD Analysis Process Glenn Research Center 1. Formulate the Flow Problem 2. Model the Geometry 3. Model the Flow (Computational) Domain 4. Generate the Grid 5. Specify the Boundary Conditions 6. Specify the Initial Conditions 7. Set up the CFD Simulation 8. Conduct the CFD Simulation 9. Examine and Process the CFD Results 10. Further Analysis ? 11. Report the Findings The objective is confidence that the CFD results provide accurate, credible, and useful information. 2. 1) Formulate the Flow Problem Glenn Research Center Determine the following: 1. What is the objective? Engineering quantities Performance Proof of concept 2. What is known? Freestream conditions ONERA M6 Wing Geometry - Section coordinates and wing tip shape Configuration - Tunnel test section: M, Re, Tt - Wing.

• Residuals of conservation equations should approach zero as the number of iterations increases. • Satisfaction of conservation statements (mass, momentum, energy, …) are also useful for monitoring iterative convergence. • Convergence to design / performance quantity (lift, drag, recovery) is often a critical test for iterative ...

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