Quality of a High‐Enthalpy Flow upon Electric‐Arc Heating of Air in a Facility for Investigating Supersonic Combustion
Tóm tắt
The quality of a high‐enthalpy air flow is considered in terms of simulating full‐scale flow parameters in studying supersonic combustion. It is shown that the plasmatron with gas‐vortex stabilization of the arc, which was used in experiments, can provide, in a wide range of pressures and temperatures, a level of specific erosion of electrodes equal to 10-7–10-9 kg/C and a concentration of nitric oxide lower than 0.06 %, which has almost no effect on the flow structure and basic characteristics of ignition and combustion processes.
Tài liệu tham khảo
S. I. Baranovskii, A. S. Nadvorskii, and D. D. Romashkova, “A simple one-dimensional model of the air contamination effect on supersonic combustion,” Combust. Expl. Shock Waves, 24, No. 6, 677–687 (1988).
L. N. Puzyrev and M. I. Yaroslavtsev, “Stabilization of gas parameters in the plenum chamber of a hypersonic hot-shot wind tunnel,” Izv. Sib. Otd. Akad. Nauk SSSR, Ser. Tekh. Nauk, No. 5, 135–140 (1990).
L. N. Puzyrev, V. V. Shumskii, and M. I. Yaroslavtsev, “Principles of development of gas-dynamic models with combustion to be tested in high-enthalpy short-time facilities,” Preprint No. 7, Inst. Theor. Appl. Mech., Sib. Div., Acad. of Sci. of the USSR, Novosibirsk (1990).
V. F. Ignat'ev, A. N. Timoshevskii, and É. K. Urbakh, “Investigation of a plasmatron with a cylindrical cathode,” in: Plasma 77, Proc. VII All-Union Conf. on Low-Temperature Plasma Generators, Vol. 1, Alma-Ata (1977), pp. 3–6.
É. K. Urbakh, “Thermal and aerodynamic processes in electric-arc gas heaters,” Candidate's Dissertation in Tech. Sci., Inst. Thermal Physics, Sib. Div., Acad. of Sci. of the USSR, Novosibirsk (1986).
V. K. Baev, V. I. Golovichev, P. K. Tret'yakov, et al., Combustion in a Supersonic Flow [in Russian], Nauka, Novosibirsk (1984).
V. A. Zabaikin, A. M. Lazarev, E. A. Solovova, and P. K. Tret'yakov, “ Gas dynamics of a supersonic flow in a variable-section channel with heat addition,” Vestn. Akad. Nauk BSSR, Ser. Fiz.-Énerg. Nauk, No. 3, 102–106 (1986).
V. A. Zabaikin, “Efficiency of hydrogen combustion in a high-temperature supersonic air flow for different methods of injection,” Combust. Expl. Shock Waves, 35, No. 2, 113–118 (1999).
A. N. Timoshevskii et al., “Investigation of temperature and velocity distributions in plasma jets,” in: Plasma 77, Proc. VII All-Union Conf. on Low-Temperature Plasma Generators, Vol. 1, Alma-Ata (1977), pp. 242–245.
M. F. Zhukov, A. S. Koroteev, and B. A. Uryukov, Applied Dynamics of Thermal Plasma [in Russian], Nauka, Novosibirsk (1975).
V. A. Zabaikin, V. A. Konstantinovskii, A. N. Timoshevskii, and É. K. Urbakh, “Plasma-arc heater as an air heater in a test bench for studying supersonic combustion,” in: Proc. 2nd All-Union Conf. on Methods of Aerophysical Research, Part 2, Novosibirsk (1979), pp. 240–242.
V. A. Zabaikin, E. V. Perkov, and P. K. Tret'yakov, “Effect of an H2O2 additive on hydrogen ignition and combustion in a supersonic air flow,” Combust. Expl. Shock Waves, 33, No. 3, 301–305 (1997).
V. N. Strokin and V. M. Khailov, “Effects of nitric oxide on ignition delay for hydrogen in air,” Combust. Expl. Shock Waves, 10, No. 2, 198–201 (1974).
A. G. Gaydon, The Spectroscopy of Flames, Charman and Hall, London (1957).