Comparison of Flow field in the proximity of A Single Planar & Wrap-around Fin

Abstract

Abstract This paper analyses the results of the computational analysis between a single planar and a wrap-around fin mounted on a semi-cylindrical body. A free-stream Computational Fluid Dynamics (CFD) model was simulated for both cases in the Mach 0.4-3.0M range at 0°Angle of attack, in which, the behavior of flow around the fin was investigated using a turbulence model of higher order discretization. The post-processing shows all the possible views of the flow dynamics around the fins, as well as the missile body. The aerodynamic drag and the rolling moment characteristics of the planar and the wrap-around fin have been compared and adequate validation has been performed for the current missile model. This work forms a preliminary step in turbulence modelling and comparing the flow aerodynamics around both fin geometries.

Authors

• Sharma, Nayhel Embry-Riddle Aeronautical University
• Saini, Palak Embry-Riddle Aeronautical University
• Chaudhary, Hrishabh Embry-Riddle Aeronautical University
• Nagi, Gurteg Embry-Riddle Aeronautical University
• Kumar, Rakesh, Dr. Embry-Riddle Aeronautical University

Keywords

• Computational Fluid Dynamics
• Aerodynamics
• Turbulence Modelling
• Planar Fins
• Wrap-around Fins
• Aerodynamics and Fluid Mechanics
• Applied Mechanics
• Other Aerospace Engineering