Research and Evaluation of Design Method of Forebody Simulator Based on Dorsal Intake Layout Aircraft
In order to meet the needs of the forebody-intake-engine free-jet test of dorsal intake layout aircraft,the forebody simulator is designed to simulate the effect of the original forebody on the flow field in the intake tract.According to the flow characteristics of the dorsal intake layout aircraft,two types of forebody simulators are designed,and the flow field of three flight attitudes with a flight altitude of 10 km and a flight speed of 0.7Ma is simulated in the free jet test cell.Comparison of the meridian surface and intake outlet flow fields and the average parameters of intake outlet proves that the designed forebody simulator can simulate the forebody effect of the original forebody in the jet environment,among which,the simulation effect of the forebody simulator under the negative angle of attack and side slip angle attitude is better,while the simulation effect of the forebody simulator under the positive angle of attack attitude is relatively poor.
万方数据
维普
