Recent Experimental Efforts on High-Pressure Supercritical Injection for Liquid Rockets and Their Implications

Figure 17

The inner-jet reduced temperature for a coaxial injector plotted versus the annular outer-jet mass flow rate, normalized by its maximum mass flow rate, at four different chamber pressures. Inner-jet mass flow rate is fixed at about 275 mg/s. The lines, called “FIT” on the inset, are curve fits to the raw data. The maximum outer-jet mass flow rates for 1.4, 2.4, 3.5, and 4.8 MPa are 2,995, 2,985, 2,974, and 2,918 mg/s, respectively, Davis and Chehroudi [42].