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Enhancing Efficacy of Swirling Flow in Solid Fuel Ramjet Engine through CFD Analysis

Explore the impact of swirling flow on solid fuel ramjet engines using Computational Fluid Dynamics (CFD) models. Investigate 2D and 3D analyses to optimize inlet flow angle and achieve a strong recirculation zone. Collaboration with Aerojet-Rocketdyne to replicate effects observed in the study. Acknowledgments to key contributors in the research.

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Enhancing Efficacy of Swirling Flow in Solid Fuel Ramjet Engine through CFD Analysis

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  1. Fluid Dynamics and Efficacy of Swirling Flow in a Solid Fuel Ramjet Engine Samuel R. Carr University of Virginia Region I Student Conference, April 7-8, 2017 Charlottesville, Virginia

  2. Swirling Flow – State of the Art • Solid Fuel vs. Liquid Fuel • Variable Bypass • Secondary Gaseous Injection • Inlet Swirler

  3. Summary of Project • Using Computational Fluid Dynamics (CFD) to model fluid flow • 2D Analysis Proof of Concept phase • Vary inlet flow angle • Hope to achieve strong recirculation zone • 3D Analysis • Replicate effects produced in 2D analysis • Cooperation with Aerojet-Rocketdyne

  4. Geometry, velocity fields, scalar profiles 2D Analysis

  5. 2D Geometry & Set-up • Simplified axisymmetric model • Inlet air angle can be varied • Constant fuel regression

  6. Preliminary 2D Results • Inlet angle: 70° • Constant axial velocity • Recirculation zone

  7. Preliminary 2D Results

  8. Geometry, Particle Traces, Scalar Profile, Velocity Profile 3d Analysis

  9. 3D Geometry • Cylindrical base has a “bullet” shape • 6 blades • NACA 64 A010 airfoil shape • 60°relative to centerline

  10. Particle Traces

  11. Particle Traces

  12. Scalar Profile

  13. Velocity Profiles

  14. Velocity Profile

  15. Acknowledgements • Dr. Rita Schnipke, Department of Mechanical and Aerospace Engineering at the University of Virginia • Dr. Pat Hewitt, Aerojet-Rocketdyne • Mark Friedlander, Aerojet-Rocketdyne

  16. Questions?

  17. Backup slides

  18. Pressure

  19. 2D Scalar Profile Integral

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