Prediction of corner radius effect on aerodynamic characteristics of missiles


Asan H., Akcay M.

2nd Trabzon International Energy and Environment Symposium, Trabzon, Türkiye, 26 - 29 Temmuz 1998, ss.421-424 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası:
  • Basıldığı Şehir: Trabzon
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.421-424

Özet

In this study, an engineering method is presented for computing normal force, pitching moment and center of pressure for missiles with square and rectangular cross sections. To predict normal force coefficient values for rectangular body, a formulation in generated by means of Newtonian theory in this study. An empirical correction factor is developed to modify C-dn values for noncircular cross sections. This semi-empirical method is applied to predict viscous separation crossflow and potential crossflow terms for body alone. Geometric variable considered in this study is the corner radius of cross section. C-N, and X-CP values for bodies alone are computed for different Mach numbers. Predicted CN and X-CP values obtained for the body agree well with the experimental results.