مطالعه تجربي رفتار آيروديناميكي دو راكت بالك تاشو

An Experimental Study of the Aerodynamic Behavior of Two Wrap Around Fin Missiles

An extensive experimental investigation to understand the aerodynamic behavior of wrap around fin(WAF) missile configuration has been conducted. Various tests using at first a standard model (TTCP) in the trisonic wind tunnel of Imam Hossein University has been performed The tunnel has a test section of 60X60 cm and can operate at Mach numbers of 0.4 <(and equal) M <(and equal) 2.2 and at attack angles of - 4 ° < (and equal)a <(and equal)10 ° . Experimental longitudinal results are compared with those of NASA and an engineering code. The results for TTCP model are in good agreement . After gaining confidence on the TTCP results, a new model of WAF rocket was designed, built and tested This paper compares the results of two models tested under the same conditions.