The flowfield of the core engine inlet was numerically calculated to solve the problem that the air flow measured in the air simulated test facility was inconsistent with ground test.
Changes of sidewall sweep Angle and cowl position can influence inlet performance such as mass capture, total pressure recovery coefficient and uniformity of isolator exit flowfield.
There is a difference between the numerical simulation results of two-dimensional and three-dimensional flowfield in supersonic inlet, which shows the influence of boundary layer on the side wall.