GASDYNAMIC EFFECTS OF PERIODIC PULSE ENERGY SUPPLY IN WIDENING CHANNEL WITH CONSIDERATION OF AIR REAL PROPERTIES

Vladimir P. Zamuraev
1. Khristianovich Institute of Theoretical and Applied Mechanics SB RAS Novosibirsk, Russian Federation
2. Novosibirsk State University Novosibirsk, Russian Federation
zamuraev@itam.nsc.ru
Anna P. Kalinina
1. Khristianovich Institute of Theoretical and Applied Mechanics SB RAS Novosibirsk, Russian Federation
2. Novosibirsk State University Novosibirsk, Russian Federation
a_p_kalinina@mail.ru
The material was received by the Editorial Board: 12.05.2009
The impact of molecular (thermodynamic) gas properties on qualitative and quantitative characteristics of gasdynamic effects in a widening channel (with supersonic flow) at periodic pulse energy supply has been studied. As thermal equation of state and other gas thermodynamic properties equations for real gas have been used (with air parameters) with consideration of excitation of oscillation, dissociation and single ionization. We show that qualitatively the effects do not depend on taking molecular properties into account, but the existence of inner degrees of freedom leads to losses in tractive force of about 30 per cent for both periodic pulse and steady modes of energy supply.

Keywords:
supersonic flow, channel, periodic pulse energy supply, air thermodynamic properties
УДК 533.6.011

GASDYNAMIC EFFECTS OF PERIODIC PULSE ENERGY SUPPLY IN WIDENING CHANNEL WITH CONSIDERATION OF AIR REAL PROPERTIES
References: Zamuraev V. P., Kalinina A. P. GASDYNAMIC EFFECTS OF PERIODIC PULSE ENERGY SUPPLY IN WIDENING CHANNEL WITH CONSIDERATION OF AIR REAL PROPERTIES. Vestnik NSU. Series: Physics. 2009, vol. 4, no. 3. P. 50–54 (in Russ.). DOI: 10.54362/1818-7919-2009-4-3-50-54