Experimental research on flow and condensation of supersonic steam jet immerged in subcool water

The flow and condensation heat transfer of supersonic steam jet immerged in subcool water was investigated experimentally. The inlet pressure of steam was at the range of 0.20-0.40 MPa and the temperature of subcool water was 27°C. The experimental and analytical results show that: the flow region consists of four different parts, namely steam plume, steam-water interface, steam-water mixing layer and pure water; With the increase of inlet steam pressure at the range of 0.20-0.40 MPa, there are three kinds of steam plume, namely conical-elliptical double layers, conical and elliptical steam plumes, and the non-dimension penetration length of steam plume linearly increases from 2.20 to 4.20 while the condensation heat transfer coefficient slowly decreases from 0.80 to 0.67 MW/(m²;·°C).