Drag on Conical and Ogive Missile Nose Cones for Various Speed Regimes
DOI:
https://doi.org/10.55927/ijis.v5i6.47Keywords:
Conical, Drag Coefficient, Nose Cone, Ogive, Shock WaveAbstract
Drag force significantly affects the efficiency and aerodynamic performance of missiles. The shock wave generated ahead of the nose cone is the primary source of wave drag, which substantially influences the overall drag. This study focuses on the drag coefficient of conical and ogive nose cones across various speed regimes. The method employed is a narrative literature review, synthesizing findings from relevant scientific sources. Based on the literature synthesis, it was found that the ogive shape generally outperforms the conical shape in subsonic and transonic regimes due to its smoother geometric profile. In the supersonic regime, however, the relative performance between the conical and ogive shapes is not absolute but is highly dependent on the fineness ratio and other geometric parameters. A conical shape with a high fineness ratio can significantly reduce wave drag, while under certain geometric conditions, the ogive still exhibits a lower drag coefficient. Consequently, the selection of a nose cone shape must simultaneously consider the operational speed regime and the fineness ratio to achieve optimal aerodynamic efficiency
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