naa a22 4500 51075872X CHVBK 20180411083131.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1134/S0869864313030013 doi (NATIONALLICENCE)springer-10.1134/S0869864313030013 Investigating an annular nozzle on combustion products of hydrocarbon fuels [Elektronische Daten] [V. Levin, N. Afonina, V. Gromov, G. Smekhov, A. Khmelevsky, V. Markov] Full-scale and computational experiments were used to investigate the flows in the jet thrust unit with annular nozzle and deflector in the form of a spherical segment. The used working gas was the combustion products of air mixtures with acetylene, gas-phase aviation kerosene, and natural gas. Experimental studies were carried out in a hot-shot wind tunnel in the range of stagnation pressure from 0.48 to 2.05 MPa. The calculations for the cases of combustion products outflow in terrestrial and high altitude conditions were performed with the original computer program that used the Euler and Navier-Stokes systems supplemented by equations of chemical kinetics. It was found that the thrust of the jet module with an annular nozzle at high altitude almost twice exceeds the sound nozzle thrust, but is lesser (about 25 %) than the thrust of the ideal calculated Laval nozzle; the difference therewith decreases markedly with the decrease of flight altitude and stagnation pressure. Pleiades Publishing, Ltd., 2013 jet thrust unit nationallicence Laval nozzle nationallicence annular nozzle nationallicence shock wave nationallicence combustion nationallicence Levin V. Institute of Mechanics, Lomonosov Moscow State University, Moscow, Russia aut Afonina N. Institute of Mechanics, Lomonosov Moscow State University, Moscow, Russia aut Gromov V. Institute of Mechanics, Lomonosov Moscow State University, Moscow, Russia aut Smekhov G. Institute of Mechanics, Lomonosov Moscow State University, Moscow, Russia aut Khmelevsky A. Institute of Mechanics, Lomonosov Moscow State University, Moscow, Russia aut Markov V. Institute of Mechanics, Lomonosov Moscow State University, Moscow, Russia aut Thermophysics and Aeromechanics Kutateladze Institute of Thermophysics SB RAS 20/3(2013-06-01), 265-272 0869-8643 20:3<265 2013 20 11510 https://doi.org/10.1134/S0869864313030013 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0869864313030013 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Levin V. Institute of Mechanics, Lomonosov Moscow State University, Moscow, Russia aut NATIONALLICENCE 700 1- Afonina N. Institute of Mechanics, Lomonosov Moscow State University, Moscow, Russia aut NATIONALLICENCE 700 1- Gromov V. Institute of Mechanics, Lomonosov Moscow State University, Moscow, Russia aut NATIONALLICENCE 700 1- Smekhov G. Institute of Mechanics, Lomonosov Moscow State University, Moscow, Russia aut NATIONALLICENCE 700 1- Khmelevsky A. Institute of Mechanics, Lomonosov Moscow State University, Moscow, Russia aut NATIONALLICENCE 700 1- Markov V. Institute of Mechanics, Lomonosov Moscow State University, Moscow, Russia aut NATIONALLICENCE 773 0- Thermophysics and Aeromechanics Kutateladze Institute of Thermophysics SB RAS 20/3(2013-06-01), 265-272 0869-8643 20:3<265 2013 20 11510 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer