Coaxial inlet nozzle for fluid thermal oscillation experiment

The utility model belongs to the technical field of fluid experiments, and particularly relates to a coaxial inlet nozzle for a fluid thermal oscillation experiment. The coaxial inlet sprayer comprises a fluid inlet connector, a fluid flow channel, a gasket groove, a sealing gasket, an outlet connector and a wrench groove. The inlet connector is an inner pipe thread, and a cavity is arranged behind the connector to be communicated with the flow channel. The fluid flow channel is divided into an inner flow channel and an outer flow channel, and the axis of the inner flow channel and the axis of the outer flow channel are collinear and non-collinear. According to the gasket groove and the sealing gasket, the gasket is placed in the groove and used for separating cold fluid and hot fluid, and a through hole is formed in the center and communicated with the flow channel. The outlet connector is an outer pipe thread, and cold fluid and hot fluid are coaxially jetted through the device and are mixed in a container