Theoretical and Experimental Investigation of a Shock Wave Structure in Microporous Liquids
Abstract
Developing of new prospective samples of hypersonic air vehicles with Mach number of flight M>5 requires a development of new engines since the efficiency of conventional jet- engines sharply decreases in this case. It is supposed to apply detonation and scram jets in this velocity range. One of the main requirement of such engines developing, testing and running consists in existence of cheap technological fuel. This fuel has to satisfy to ecological performance, it has to ensure a stable work of a scram jet at Mach numbers M=3,5 divided by 14 and of a detonation engine at M=0 divided by 9. Main direction of investigations is connected with such a fuel creation on basis of the aviation kerosene. In fact there is a problem of new fuel type creation with controlled physical and chemical properties depending on flight conditions. It is well known 1,2 that preliminary bubbling of the liquid fuel (for example of the aviation kerosene) by an oxidizer (air, oxygen saturated air) or by flammable gases (CH4, H2, C2H2) essentially improves its spraying characteristics, mixing, range of a stream, and it decreases an ignition delay time. Generating of initial radicals, products of CO, H2, H2O incomplete burning, products of Sigma CxHy conversion and cracking during this process can essentially decrease an induction time of chain reactions at lower initial temperature of the air-fuel mixture(see. 2,4). All these factors in aggregate favorably influence development of combustion and detonation processes. In the work are presented means and results of new device tests, which insure generating of "activated porous fuel" on liquid hydrocarbon basis and have indicated above advantages as a unit.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 2003
- Accession Number
- ADA433508
Entities
People
- A. V. Eremeev
- D. M. Van Wie
- E. A. Bushmanov
- I. B. Timofeev
- V. P. Vorotilin
- V. Yu. Velikodnyi
- Yu. G. Yanovsky