THE INFLUENCE OF INITIAL AND BOUNDARY CONDITIONS ON GASEOUS DETONATION WAVES

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Authors
  1. Murray, S.B.
Corporate Authors
Defence Research Establishment Suffield, Ralston ALTA (CAN);McGill Univ, Montreal QUE (CAN) Faculty of Graduate Studies and Research
Abstract
The results of five experimental investigations on the initiation, propagation and transmission of detonation have shown that the wave behavior depends on the relative rates of gasdynamic expansion and chemical energy release occurring within the cellular detonation front. The former rate is controlled by the "boundary conditions" defined by the physical system, while the latter rate depends on the chemical and physical properties of the combustible mixture. The fractional increase (U) in the area of the post-shock "stream tube', evaluated over a chemical kinetic distance equal to the cell length, has been identified as a parameter which satisfactorily characterizes the competition between these two rate processes. For (U) less than about 20%, the chemical processes survive the gasdynamic expansion and self-sustained propagation is possible. TRUNCATED
Report Number
411 —
Date of publication
15 Sep 1985
Number of Pages
316
DSTKIM No
86-00122
CANDIS No
105751
Format(s):
Hardcopy;Originator's fiche received by DSIS;Document Image stored on Optical Disk

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