An Innovative Stabilizer Unit Design for Tube Launched Artillery Rocket to Improve Dynamic Stability

Abstract

In this paper, stabilizer unit of the tube launched artillery rocket is designed with flat wrap around fins (WAF). A comparative study has been carried out to find out the aerodynamic behavior of same rocket with curved and flat WAF. Computational fluid dynamic (CFD) is used to find out aerodynamic coefficients of the rocket with both types of fins. It is found that with flat WAF chances of occurrence of out-of-plane moment reduced drastically. Hence, it is recommended to use Flat WAF for tube launch rocket to avoid any