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

Figure 10

Normalized centerline density (b) and temperature (c) axial profiles of LN₂ injected into GN₂ at three different injection temperatures and a chamber pressure of 4 MPa (i.e., near critical pressure). The plot (a) shows the thermodynamic conditions under which test cases A, B, and C are conducted. The dashed line is the pseudoboiling line. Note, A4, B4, and C4 symbols represent A, B, and C cases, respectively. Oschwald and Schik [28].

(a)

(b)

(c)