Ignition Overpressure Analyses of Launch Pads at Different Deflector Angles

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İriolya T. G., Eyi S.

12. International Conference on Computational Fluid Dynamics (ICCFD12), Kobe, Japonya, 14 - 19 Temmuz 2024, sa.6, ss.1-22

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Kobe
  • Basıldığı Ülke: Japonya
  • Sayfa Sayıları: ss.1-22
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

The aim of this study is Computational Fluid Dynamics (CFD) analysis of ignition Over-Pressure (IOP) waves. During the ignition of launch vehicle rockets, unsteady pressure waves appear which is called IOP. These waves have high amplitude and low frequencies. IOP waves can have destructive effect on launch vehicle and launch pad. In order to have a safe launch, IOP should be analyzed and nozzle exhaust plume back flow toward launch vehicle should be prevented. In this study, OpenFOAM software is used for flow analyses. Density-based rhoCentralFoam and pressure-based sonicFoam solvers are utilized. The effects of deflector wall angles on IOP waves are investigated using both inviscid and viscous models.