138
6 Hypersonic Wind Tunnels
and 6.3). The free test section is equipped with a contoured nozzle of an exit diameter
of 0.350 m and the stagnation pressure can vary in the range of 12–120 bar. A threeway valve achieves a very short flow starting time (a few milliseconds) required for
heat flow measurements (see Sect. 9.5).
Fig. 6.2 The R3Ch wind tunnel at ONERA, Meudon (© ONERA)
Fig. 6.3 View of the R3Ch wind tunnel at ONERA, Meudon (© ONERA)
6 Hypersonic Wind Tunnels
and 6.3). The free test section is equipped with a contoured nozzle of an exit diameter
of 0.350 m and the stagnation pressure can vary in the range of 12–120 bar. A threeway valve achieves a very short flow starting time (a few milliseconds) required for
heat flow measurements (see Sect. 9.5).
Fig. 6.2 The R3Ch wind tunnel at ONERA, Meudon (© ONERA)
Fig. 6.3 View of the R3Ch wind tunnel at ONERA, Meudon (© ONERA)