Research on Unsteady Flow Field Characteristics of Submerged Inlet under Large Maneuver Condition
In order to explore the differences in steady-state and transient aerodynamic characteristics of sub-merged inlets during high maneuvering flight,this study focuses on cruise missile and adopts CFD numerical methods to conduct steady-state and transient analysis of the submerged inlets.The research indicates that the trends of the transi-ent and equivalent steady-state calculations during high maneuvering remain consistent,but there are certain differences in the results.When the missile body and inlet undergo periodic pitching motion,the maximum difference in total pres-sure recovery coefficient between transient and steady-state calculations is about 2％.When the missile body and inlet undergo periodic yawing motion,the maximum difference in total pressure recovery coefficient between transient and steady-state calculations is about 7％.Additionally,there is a noticeable hysteresis effect in the transient calculation results,which becomes more pronounced with the increase in angular velocity during the maneuvering process.
万方数据
维普
