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Computational and Experimental Studies of Pressure Relief Doors in Ventilated Nacelle Compartments

Computational and Experimental Studies of Pressure Relief Doors in Ventilated Nacelle Compartments. P Pratt, J Watterson, E Benard. School of Aeronautical Engineering. Slender body. Oblique Jet. Background. Requirement for Nacelle Ventilation Pressure Relief Door.

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Computational and Experimental Studies of Pressure Relief Doors in Ventilated Nacelle Compartments

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  1. Computational and Experimental Studies of Pressure Relief Doors in Ventilated Nacelle Compartments P Pratt, J Watterson, E Benard School of Aeronautical Engineering

  2. Slender body • Oblique Jet Background • Requirement for Nacelle Ventilation • Pressure Relief Door • Complex 3D combination of flow phenomena • Shear layers • Compressible Flow Assume Static Behaviour

  3. CFD Experiments Methodology Theory • Use CFD to help with design of experiment • Gather experimental performance data • Validate CFD model to use for design • Gain theoretical understanding of flow physics

  4. h l Experimental Setup Free-stream

  5. NACA TN4007 Vick, 1957

  6. Results

  7. Results

  8. Results

  9. Results

  10. Results

  11. Results

  12. Results

  13. Results

  14. Results

  15. Results

  16. Results

  17. Results

  18. Conclusions • Good agreement between CFD and NACA TN4007 • Confidence in modelling assumptions • Large amount of data available to focus experiment • Potential applications in other fields • Boundary layer control • Prevention of shock induced separation • Cooling and mixing

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