Device capable of precisely simulating flow field of engine nacelle

The invention discloses a device capable of precisely simulating a flow field of an engine nacelle. The device comprises an outer culvert head, a power simulator, an outer culvert connector, a first outer culvert measurement rake, an outer culvert tail, an inner culvert body, a first inner culvert measurement rake, an inner culvert cover plate, a tail nozzle, a tail cone, a second inner culvert measurement rake and a second outer culvert measurement rake, wherein the outer culvert head is connected with the outer culvert connector through a horizontal screw, the power simulator is connected into the outer culvert connector through a vertical screw, the first outer culvert measurement rake is installed on the outer culvert connector through a screw and a sealant, the first inner culvert measurement rake is installed on the inner culvert body through a screw and a sealant, the inner culvert cover plate is connected to the outer side of the inner culvert body through a horizontal screw, the tail nozzle is connec