® Weight Optimization Analysis for missile fin

The focus of this Research is to investigate a heating and thermo-Structural analysis of fins of a missile structures at supersonic flight. The heat due to friction at high Mach number between the flow and body, i. e. viscous heating must be taken into account due to the velocity field is coupled with the temperature field. The flow field around the fins of the missile and especially the temperature distribution on its surface, as well as thermal-structural analyses are numerically modelled. The investigation was carried out for two Mach numbers (M = 2.5 and M = 3.0 With Alpha 0,2,5,10 at an Altitude of 5km). and the data are compared with wind tunnel data available for Thermal and structural experimental results and found good agreements of results obtained, in order to assure credibility of numerical fluid-thermal-structure interaction. Conducted simulations were carried out to better understand the fluid-thermal-structure interaction of the missile fin during supersonic flight.