Abstract
A numerical investigation is performed of two-stage compression of gas with different modes of transfer of gas between the chambers of a free-piston ballistic facility. The calculation results demonstrate that the temperature of two-stage compression with isobaric transfer flow is approximately 20% higher than the temperature of compression with isochoric transfer flow and up to 40% higher than the temperature of two-stage compression with a permanently open opening in the range of maximal values of compression pressure up to 60 atm. An experimental investigation is performed of the process in a ballistic facility with the working volume divided into two chambers. A simple method is demonstrated of realizing two-stage compression with isobaric transfer flow using a cone end piece located at the front end of the piston. The experimental results confirm theoretical analysis.
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Original Russian Text © V.M. Shmelev, V.M. Nikolaev, V.S. Ilyukhin, D.B. Volov, 2008, published in Teplofizika Vysokikh Temperatur, Vol. 46, No. 1, 2008, pp. 85–91.
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Shmelev, V.M., Nikolaev, V.M., Ilyukhin, V.S. et al. Investigation of two-stage compression of gas. High Temp 46, 77–83 (2008). https://doi.org/10.1134/s10740-008-1011-4
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DOI: https://doi.org/10.1134/s10740-008-1011-4